"gross mishandling at the very least I should think"
Were you there? Much Tristar, or indeed multi engine experience?
"Wonder what follow up action is being/has been taken?"
Looking for a witch-hunt? If so, why?
What's the problem, bullied by a multi-engine pilot at school?
What debate do you want to start? Is it: should we hang a bloke on the strength of an internet message board and what you have heard/surmise? Or is it: Are Tristar crews all rubbish?
How about you wait for the results of follow up action (if any)?