I've been reading as much as I can about him, and I have a new theory...
He's always been this kind of player. If you watch him closely, he makes a lot of mistakes on the ice. A lot of bad passes, overskates pucks, and actually turns it over quite a bit. But you don't notice it because he makes so many brilliant plays. So take a 16 or 17 year old player with that kind of playing style, and when he gets to the pros in Sweden, they put him on the checking line and tell him not to **** up. It's really easy to imagine if Bratt was on our 3rd or 4th line and on a short leash, he wouldn't be making all these amazing plays, just chipping the puck off the glass and scoring a point every 3 or 4 games.
If there's a lesson here, it's to let young players **** up a little bit more without immediately punishing them. When a player turns the puck over on a bad play, you don't need to bench them to let them know that they ****ed up, they already know that. Be more constructive. Encourage then to keep taking chances, because this isn't 2002 where you just make simple plays, chip the puck out, dump it in, and go forecheck. That doesn't work anymore, there's too much speed and skill in the league. You need to make risky passes, you need to stickhandle on the blue line, you need to do all those things that coaches used to tell you not to do.