In a redraft, I'd take Barnes over Crowder. Simply put, you can't consider Jae's contract and Harry's potential contract in the decision, they're about even statistically (offensively), and we've probably seen close to Jae's ceiling but not necessarily Barnes' (on another team, based on his being 4th option versus 2nd, his 3p%, his age, and his contribution to a historically great team). Doesn't seem like all that crazy of a decision...
Beal's injury situation and "minutes restriction" seems odd. Apparently that was reported to be in the 35 min range (but that remains vague and multiple sources, including he and his coach, don't have a definitive answer). That doesn't seem like much a restriction... and you'd think with his injury history they would be more conscientious of the situation.
Edit: it's crazy how close Crowder and Barnes are now, though. McCollum is the only guy that made a leap a more drastic ino. Crowder also continues to trend upward, so maybe he does still have room to grow offensively.