Far from being verbose they are shorthand. If you have the right background that is.
Of course people makes mistakes - accepting that allows for a learning culture-, and hopefully encourahes defence in depth in the form of checking and supervision.
As for your third paragraph - hmmm! Unfortunately there are some very toxic people out there.
There are situations where mistakes are not acceptable. Ever. They tend to be where people’s’ lives are at risk. If an airline pilot stuffs up a landing and the aircraft is damaged, and everyone walks away, that’s not great for the pilot, but it’s acceptable. If that pilot stuffs up the landing and puts it down short at San Francisco, he’s in the water. if that pilot fcuks up the aircraft configuration and can’t get airborne before he runs out of runway, that’s far from OK.
Anesthestist gets the dose wrong through a miscalculation. Patient dies. Surgeon amputates the wrong limb. Not OK, ever.
These things do happen, and there’s hell to pay with the Spanish Inquistion.
Accepting mistakes and learning from them is fine as a generalization, but there are many circumstances where the mantra is “DO NOT FCUK THIS UP”, for good reason.