It's unfortunate for players to lose a year+ of playing time, but Tommy John also isn't a career ending injury, either. Some of these guys are just as strong if not stronger when they come back. I used to think this was a serious issue that needed to be addressed in baseball, but with everything that's been mentioned as far as how hard these kids now throw, how much they throw in the off-season (not giving their arms time to naturally rest), and specialization, elbow issues might just become part of the norm, unfortunately.