After intense meditation and prayer, I have come to the conclusion that we make mistakes, to allow us the ability to act creativity.
When everything goes according to plan, which is less likely than everything goes amok. There are infinite ways things cab go awry, but less than an infinite way to get hings right.
Thus, every mistake offers people different ways of doing things; sure, they may be technically wrong, but in a pinch, sometimes wrong is better than nothing. Of course, less wrong is always better.
Protocols are good to follow, but sometimes ad hoc processes are the order of the day.