Ryan is given a free pass because Dr James Andrews, (his surgeon who is considered the top orthopedic surgeon in the nation) and the Miami Dolphins doctors, considered it a strain/slight tear and recommended to him to rehab a year ago rather than have the full ACL surgery (the MCL would heal itself with nature). As it turns out, they made the wrong call re the ACL when he aggravated it at training. However, when you have the very best orthopedic surgeon and a team of other doctors making a recommendation and you follow their advice, I don't think you are being fair to blame the player.
BTW - the European treatment was just to accelerate the recovery with stem cells - it was not the problem.