"Won't play ever again, or will only play 6 months after surgery" is about the most ridiculous way you could possibly put it.
The same is true of any ACL tear, right? Are we hearing that Julian Edelman will "never play another down in the NFL, or will only play 8 months after surgery"? No, because that would be completely ****g absurd.
He needs surgery in their opinion. It may or may not torpedo the deal, but that's what it is.