That is indeed a fine test to perform and I’d hope that random clicking was already part of the testing. But I think the issue is that he was testing functional

That is indeed a fine test to perform and I’d hope that random clicking was already part of the testing. But I think the issue is that he was testing functionality that wasn’t yet (fully?) implemented and when it inevitably crashed he berated the team. Don’t personally wanna relitigate the “was Jobs a bad boss” thing as I feel like that’s been done to death, but feel free to pull that thread and consider why Jobs might have behaved this way.