To me it seems that the injury system is flawed though not because there are too many. I don't disagree that injuries are a little low in this game but they aren't distributed correctly. Relief pitchers in particular are subject to a lot of injuries IRL and pitchers in general account for more than half of all injuries, I believe, whereas in
OOTP pitcher injuries are more like 1/3. In the link posted above 121 of the 202 injuries were to pitchers.
Oddly, catchers in
OOTP seem almost immune to injury as far as I can tell, while most people believe that IRL catchers are the most likely to be injured of the position players.