It's a good point, but the prominent placement of those cutoff switches, and the criticality of runaway stab trim, suggests it should be solidly there in training.

I'm sure the training issue will be prominent in the NTSB report.

Note that stall recovery is heavily trained, but airliners still crash because the pilot reflexively commands nose up in a stall instead of nose down. And the MCAS system is there to nose it down in a stall.