I wouldn't mind getting rid of it altogether either. Even though it's a sports game, it's still a game.
Since they want to make it more realistic, I don't really have a problem with injuries, but agree that the estimation is god awful. I understand that in the real world injuries can take longer to heal than initially predicted, but as a game I'd like for them to give us exact time frames (includes the arena expansions).
If that's too much to ask, then I think that if they simply switched from "weeks" to "days" that would help it. When it's been 2 weeks (for a 2-week injury) and it still says he'll be out for 1 week it's annoying, because it could be 1 day or another full week, we really have no idea. I think that if they timed it like the arena expansions (by days remaining), it would at least give us a better estimate of when we can count on a player, even if it says "9 days remaining" for 3 days straight heeheheh