Interestingly, in the BA sim (contract booking, so I’m not 100% sure of config), we could not get ALT to capture with 0 set.
Take-off resulted in an open climb.
His original video was a useful service for flight safety. They should have given him a Najm!
So the fault could be:
1. Something Boeing fixed
2. Something Boeing broke, or
3. Something not correctly replicated in the Sim.
This is a trap that was not covered in training, can occur despite following the SOPs, and would have been trapped had the “Take-off Review” not been removed.