The guy is trash, but it seems they took that quote out of context to angle him as a villain (surprise, surprise):
“I guess I’ve just got to take people’s knees out,” he said. “That’s the only way…I’d hate to end a guy’s career, you know, over a rule. But I guess it’s better other people than me getting suspended for longer.”
“To be honest, man, you’ve just got to go low now. You’ve got to end people’s careers, you know? You’ve got to tear people’s ACLs and mess up people’s knees now. You can’t hit them high no more. You’ve just got to go low.”
That came across as more of a criticism towards Goodell than a statement of intent.