I don't see why people are so concerned about realistic behaviour. We're talking about a purely game artifact - it's so abstract and open to interpretation any response could be plausible.
The point of Death Saves is to give PCs a pretty good chance of survival. If you don't want that reduce the number of death saves.
The point of Death Saves is to give PCs a pretty good chance of survival. If you don't want that reduce the number of death saves.