It wasn't just the one team, although so far it's all being linked to Williams.
And I do have a problem with it, at least the part about giving money for injuring other players. As a fan I want to see the best guys playing every week. I hate injuries on any team. So I certainly don't want to see guys being incentivized to injure others.
Not that I think Williams or the players are horrible people or anything, I can totally see this situation happening without any major ill intents. But I hope the NFL does a full investigation and puts a stop to it as much as possible.