Joe is coming back from an ACL; those usually have full recovery. Players like Jerry Rice have even come back in 3 months.
Wes had an Achilles, much more serious, longer recovery, never was quite the same. Most players, Kobe, etc normally don't make it 100% back. Durant seems to be an exception, but he still was over a year recovery.
But to your first point; I agree that its going to be very hard for a player who already had athleticisms limits, was only a role player, and is in his mid 30's to come back and provide value beyond the $7 million he signed for. I probably wouldn't have wanted the Blazers to match this salary, although as a one year deal there wouldn't have been a lot of downside. For the Bucks this is more costly as they lost the opportunity cost of using the MLE on someone else.
Joe is coming back from an ACL; those usually have full recovery. Players like Jerry Rice have even come back in 3 months.
Wes had an Achilles, much more serious, longer recovery, never was quite the same. Most players, Kobe, etc normally don't make it 100% back. Durant seems to be an exception, but he still was over a year recovery.
True, I confused the injuries that Wesley had. But my point remains, Joe is in his mid 3o's, was already declining *before* the injury, and isn't getting any younger.