I love you fighting the good fight, Glen. I was mostly joking - I think Tkachuk proved something last year and certainly proved me wrong, away from Gaudreau/Lindholm. That is a big mountain to climb for almost any player - hell, McDavid is still trying to put up a performance like that. Like you wisely said, let Bratt be Bratt and do his thing.
To me, it looks like Bratt is aware of some of the criticism he took during the playoffs. I'm sure he was hard on himself given his history. Remember, he also practically had no post-season experience - that Tampa series in '18 was as cut and dry over from game 1 as it gets. But one of the things I'm seeing is that he's playing the boards more intelligently. He knows he's not a big guy and the angles he's taking to the puck, not shying but absorbing contact in a way that doesn't get him destroyed - he's grown his game a lot over the summer. And the anticipation of the cross blue line pass, particularly on those dust-ups that tend to happen on the half-wall when the other team tries to enter the zone...And also just shooting when he should, keeping it simple at the right time and using deception when it makes sense. Less over-passing, just whatever's necessary.
Random but typical tangent from me: there's this book by Musashi, supposedly Japan's greatest swordsman, called The Book of Five Rings. At one point, he talks about how there's no such thing as a fast cut or a slow cut - there's just The Cut AKA whatever gets the job done. I think eventually all really great players come to know this - this is what Lidstrom always did, what Stevens did after he came here, what Crosby started doing in '15-16 and maybe what we're starting to see from both Jack and Bratt. It's a beautiful thing to watch.
It's why I sometimes think that a player's true peak isn't always his statistical peak but the one in which he's most efficient and just giving his team what they need.