We don't know the answer(yet? hopefully don't find out?), but if the answer isn't "they're all coming to his defense whooping whoever blindsided him" then they're all just pushovers. When a player (QB especially) gets hit like that, someone better come in (if not the whole team) and lay that person on their ***. If Dez, Smith, Witten, or someone else got ejected for putting that guy in their place then I wouldn't have a problem with it. Yes it would suck to lose them for the rest of the game, but the message it would send would be a lot more important. It would show fight, character, and that they have each other's back which isn't something you could say for this team the past 3-4 years.
If I recall correctly, when their leader on defense got crushed no one really came to his defense. And that just shows you a big part of the problem this team has had. Many of them do NOT (or at least didn't a couple years ago - especially on D) play beside one another, or stick up for another, and are a bunch of spineless pushovers with no fight. I think the tide's changed though.