In theory this sounds like a good idea, at least, in terms of helping get players prepared for the NFL. But what are these kids expected to do the rest of the year? Obviously they need to continue training/working out, but I mean wouldn't they also be forced to get some kind of job? Hard to live off 50k without any source of income from August-June...
Personally, I would find it hard to believe that anybody would prefer to do that than go to college, where they may not be able to profit, but their lives are essentially paid for.
However, I could see it being beneficial to players that want to leave college a year early specifically to train for the NFL and limit risk of injury.