If something can go out of spec 99 times out of 100 and nothing "bad" happens, you may not want a thing that makes you stop when it's out of spec.

It's not a good look, but that's often why it is done.

Same reason that militaries have strict non wartime limits on lots of their equipment, they know it can run past the norm but they also know there are risks involved, and you don't want to risk it until it's necessary.