I've been on the other side of that coin last night. My FC decided to do a Copied Factory run for someone that didn't do it yet, and I in my infinite "wisdom" decided to go as AST in an instance where I die often as a DPS class (long story but it basically boiled down to think we wouden't get a second healer otherwise).

Was surprisingly chill compared to your experience OP, though that might be because it was my co healer (also from my FC) that wound up rezzing me multiple times (and she seemed to reveled in the chaoticness of it all, even got to use Healer LB3 in at least 3 of the fights.) I only got rezzed by another alliance a couple times as a result and as such few people if any noticed until I apologized in alliance chat. There were no total party wipes, but the experience had me agreeing that one should never queue for an important role for Alliance raids if they are prone to dying.

(as for why I didn't quit chalk that up the sunk cost fallacy, though karma might had ensured I walked out relatively empty handed)