I guess that's why there are safety margins built into everything - if rotation was late or slow, that counts as a failure and has used the safety margin as visibly seen.
It has also removed the likely margin for a second failure (human or technical) so there is a question as to whether the margins are sufficient, or are they only designed for a single "failure" event and a double failure is deemed unlikely enough to happen.
In some ways the system has worked in that an apparent failure has not caused a catastrophe, but in other ways it reveals the flaws, but where do you stop...