Mistakes, errors and what else should have been done are surely discussed now by Bucks.
That Game 1 loss should served as wake up call for them to do some adjustments. This is their first loss in post-season and looks like they was surprised coming from an "easy" opponent to a difficult one. Relax indeed.
Surely he wants to bucket it and not just to gained a foul. I think he realized in mid-air that it will miss so he try to steal a foul which the refs didn't called. That was a closed one. Durant surely will be pissed-off if his last second turnover results into losing that game.