Both these claims can still be true. I have had a but get through twice, and eventually it was picked up by the app store reviewers, because it was such a hard

Both these claims can still be true. I have had a but get through twice, and eventually it was picked up by the app store reviewers, because it was such a hard to replicate bug. It is certainly true that some QA is better than no QA. Even professional QA's miss some stuff.