Not only is it true, in fact I have never seen a project that didn't do this in one way or another, and I've been making games for 25 years. You need to have so

Not only is it true, in fact I have never seen a project that didn't do this in one way or another, and I've been making games for 25 years. You need to have some spare room for late-minute, unforeseen issues. The doing it in secret and the cheering in this story are quite funny though (and yeah I have seen those as well).