If as one player claims that he had a broken leg and they waited until after the season to tell him, they deserve to be sued. I think all that money the league has given to owners may be about to be directed elsewhere. I would be talking settlement and long-term health care. Quickly.
It seems to me then, that it would make more sense to let individuals sue and not do the class action. But I am not an attorney...maybe it has a greater chance of success that way. But if, as posted above, one player was not told he had a broken leg, then that case would seem to have more merit. I don't know how the league or courts then go about sorting out who has a legal grievance vs. those just trying to "cash in". They did have a process to sort through that for concusions though, so I guess it could work again.
On the whole, I am inclined to believe that the majority of the players knew what they were doing.