Since then it's fair to say that Root and Smith lives have taken different courses, certainly in the court of public opinion. Smith is still serving his 12 month ban for failing to prevent two idiots carrying out an act so stupid even Boris Johnson wouldn't have backed it; meanwhile Root is feted as a sort of cross between Gandhi, Rosa Parks and Russell Brand for failing to respond like an idiot to a crass, but off the cuff remark.
Like the captaincy argument, this is just another entertaining side-show. Cricket hasn't changed since Smith was banned. It's still all about runs and wickets. And England are still as dependant on Root's runs as they ever were, possibly even more so; as will Australia be when Smith returns. Root can be as upstanding a member of society as he likes but if he doesn't start batting to his potential, then he is not doing his primary job - influencing matches and series from the start in the manner of a world class batsman. Second innings hundreds in dead rubbers are nice for the average but little good for the team.
There is some mitigation. With England's next best players currently consigned to the 6 and 7 slots, Root is in effect carrying the entire top 5. Clearly this is a lot to ask, probably too much. A couple of things could help him. Firstly another re-think of Jonny Bairstow's batting position. Having him at 5, possibly interchangeably with Ben Stokes depending on workload, would give the top order a solider look. Secondly, a recall for Ian Bell to bat at 3. He may not be the player he was but if he is properly motivated he is still streets ahead of the other options.
But the buck still stops with the captain. England don't need just the old Root back they need a new, improved version. Nasser Hussain reckons that he has another level in him. I agree, but to get there he needs to rethink his approach. There is a still a boyish carefreeness to his batting. It has served him well at times and made him a delightful player to watch. He likes to score, to put bat to ball early on, and put pressure on opposition bowlers. And all done with a smile on his face.
Nevertheless Root's game, along with the majority of the world's batsman, has stagnated. Stuck in adolescence. Sure his range of attacking shots has grown thanks to the white ball stuff but in terms of building an innings he is still doing the same thing he was five years ago. Meanwhile their opponents have matured. Aided and abetted by video and statistical analysis and encouraged most recently by some sporting surfaces, bowlers have wised up. Just as batsman have forsaken patience, they have discovered its worth. A couple of boundaries is no longer due cause for a kick of the footholes or a volley of expletives. Captains are now increasingly happy to offer boundary protection (keeping the catchers but offering the single) in the knowledge that these cavaliers are unlikely or unable to change his game. As a result bowlers are more willing to play the waiting game. They've watched the videos, they've seen the stats, enough balls in a certain area and most batsmen, Root included, will give you a chance.
It was telling that before the Test series in the Caribbean Root stated that "you don't win games by batting long periods of time, you win games by scoring big runs". Now while it is possible to bat for long periods of time WITHOUT scoring big runs, it is, especially in the T20 era, rather improbable. And surely the longer you bat the better your chances of amassing those runs? It almost makes you feel that the entire basis of the strategy set out in Sri Lanka, to 'get the runs before they get you', was predicated more on the ability and mental capacity of the English batsmen than on the conditions and the bowlers they were set to face. That it worked was a happy coincidence but it is not and can never be a recipe for consistent Test match success.
Instead of poo-pooing the value of patience and restraint Root could do worse than to look at the example of Steve Waugh. Hard as it is believe, but when he first game on the international scene he was lauded for the freeness and range of his stroke play. But such freedom brought only limited success. Only when he decided to sure up his game, eschewing risk and instead waiting for the bad ball did his fortunes change. In 46 Tests up to December 1992, Waugh scored 2166 runs at an average 36. In the next 122 he made 8761 at 56.
Even Root's contemporaries and rivals (and fellow captains) have shown the value of abstinence. Virat Kohli performance in the English summer past, was a model for any batsman facing such 'ego-burying' conditions. Even Smith himself, when confronted at Brisbane by a bowling strategy designed (by Root) solely to frustrate and restrict, refused to give it away and ultimately redirected and amplified that frustration back to bowler and captain. Root had a front row seat on both occasions but appears uninterested in the lessons.
Go back three years ago and you would have put Root on a par with Kohli and Kane Williamson with Smith slightly ahead. For the moment he has been left behind. Despite the boyish smile there is no lack of toughness, but does he have it in him to suppress his natural instincts and be what his team needs him to be - not just an accomplished competitor but a talented fighter. Kohli would see it as a challenge, does he?