Sez you. I happen to know one place where the 1974 Cobol compiler is in *heavy* daily use sans problems.
Your bug problem only occurs in modern release into the wild before it's fully baked deployment philosophy, where its effects are magnified by the twin miracles of late binding and dynamic linking at runtime.
In the old days stuff worked and if it didn't it was fixed by a swarm of people in suits.
Unless you foolishly bought IBM of course.