Have you even been insta-killed yet? As in dead before you accepted it was a Eagle vs Vulture death? Picture point blank range by a shotgun!
This "I died immediately" issue seems quite prevalent.
What you experienced was likely a bug, unintended behaviour. I didn't complain about rotisserie AI because I knew too, that that was unintended behaviour.
Sometimes the AI behaves in a way that leads to your instant annihilation and that is frustrating for you, sometimes the AI behaves in a way that makes it fish in a barrel - which means it is frustrating for me.
Just last night I watched a Pirate nosegrind a canyon - were I playing Tony Hawks Pro Skater 2 I would have been impressed. It happens, try not to let it bother you - and bug report all you can