The thing with hardware is that once you've designed the PCB and it works to the spec, you don't need to do anything until some part you need goes out of production. This means that the major ECAD money comes from shops that do a lot of one off projects which means that aerospace and defense are king. Since those industries are risk averse and spend much more time in manufacturing and testing than in design, they never really had much care for the quality of design software, even when it costs an arm and a leg like Cadence. Since these industries have extensive quality control and review processes, a bug or a crash would only cost a little bit of time. Remember though that Orcad was first developed in the mid-eighties so with the risk averse clients it's no wonder it hasn't aged well.

But yes, rest assured, outside of some (rather large) niches, no one really tolerates the garbage that is the old ECAD packages.