That is why we have processes - so people know what promises they can make.

Communication is hard - you can spend all day, every day in meetings and get nothing done and still fall behind in communication needed to make this large project work.

I've been there.

If it happens too much, then the process is not working. Do you agree? If it happens occasionally, then it's just variance.

If it is important to a team to know about this variance, then I could imagine someone would think of measuring it, temporarily, to understand the situation. But not turn the whole thing into a process.

I've been on teams that transformed every little mistake into a lesson, burdening the whole team with cargo cult processes. Things we did because "once upon a time....". That's not healthy. I'm not implying that's your case, just showing another perspective.