... results count more than anything else subjective coach Rose is seeing?

Doghouse?

Poor practice player? ("We talkin' 'bout practice?")

Bad technique/positioning on some defensive possessions? (didn't keep Jimmer off the court).

Dude looks like he worked his tail off in the off-season to get his body more where it needs to be. You'd seem to want to reward that work.

My sons and I are quite baffled on Dustup's lack of PT though we've always loved watching his antics on the bench.