At any sign of adversity he takes his ball and goes home and pouts. He's 21, he's played 20 NHL games at this point, him getting sent to the AHL to start the season is not a big deal. He should take it as a chance to show the organization they're wrong and play so well he forces his way back to the big club. Chytil did it, Kreider did it back in the day, the dearly departed Pavel Buchnevich did it. They all did it with no complaints and worked their butts off and were better for it.
Kravtsov, like Andersson before him, pouts. He's an entitled baby. The 3RW spot was his to lose in camp and he lost it. Thankfully we lucked in to Kakko and Lafreniere after drafting Kravtsov so this really isn't the end of the world (could've derailed the rebuild if things were different) so hopefully the Rangers can get a good change of scenery return for him.
This is why accruing as many assets in a rebuild as possible is so important. Rangers had the Andersson debacle and now this and are really not that much worse off for it. In fact, the players acquired with the pick they got for Andersson - Will Cullye - impressed big time at camp and should have a future here.