The airline never trained it's pilots to recognize and address such a scenario
Check the previous threads - a UAS procedure was part of the documentation supplied to airlines.
So was the procedure supplied, or were the pilots trained or both? You might very well both be right. Just having a new procedure in the books does not mean that the pilots know (and understand!) it.
So was the UAS procedure part of the crew training at AF?
Did that particular crew went through UAS procedure training?