Now you understand why ATSAs are needed! They bring a little maturity to the operational enviroment and calm down the handbag swinging.
Now children - a nice cup of tea? ALL ATSAs irrespective of unit must first learn the importance of a good brew. No doubt someone will let us know that this sacred process is being done by machines too - but have you tasted what comes out of those? That's what happens when the cost / benefit analysis says the machine is more efficient than the human.
I'm willing to bet that there are few holders of an ATCO licence who have not been dug out of a situation by a good ATSA.