If he drops the gloves with somebody? Yeah. I'd 100% be fine with Seattle fans not caring about it. I personally don't cheer for anybody to get hurt because it's just a game but I certainly care less if it's a player/play where it's far more self inflicted.
Forget the players/teams. It's simply just different to get hurt from a slew foot vs a fight. One has accepted the consequences. The other hasn't. Byram is a good example of this. He's talking shit, getting chippy, and is willing to drop the gloves despite all the injuries/him sucking at fighting. I don't think anybody should root for him to get injured but some fanbases aren't going to care if he ever gets his clock cleaned in a fight.