Crisis on Infinite Earths probably didn’t kill off anywhere near as many characters as its reputation. But reputations are kinda screwy that way anyway, considering how many people are probably unaware how any “squeal like a pig” scenes make up so little of the movie Deliverance. But there were really only two deaths in that story that really matter as far as DC was concerned. Three if you count Prince Ra-Man, and nobody does. One was Supergirl. The other was the Silver Age Flash, Barry Allen. Both of those characters stayed pretty dead for a while, but Barry’s was actually remembered by the general public, or at least by his superhero peers.
The funny thing was, Barry dying may have been the best thing to ever happen to the character.