So maybe in this case it was warranted, maybe not, like I said no one can say what the best decision was until all the facts are published. But I’m writing due to your statement which is what urked me in the first place
I was always told the 80kt/100kt check was to check the other guy is still alive and to check the speeds are the same. Stop if it’s no to either of those!
this is more like a blanket statement and someone’s technique that probably will achieve a safe outcome most of the time, but I’ve given you an example where it may not be not warranted and may result in a negative outcome, hence it’s not published procedure. I’ve never heard of such technique being taught on the airbus (or the Boeing I’ve flown).