Earlier quoted context omitted.
Why are you dismissing the data the report contains indicating that the flight crew was unable to trim manually, that the column forces were incredibly high, and that the captain repeatedly indicated he could not maintain elevator trim without the co-pilot's aid, then? Your responses have been incredibly selective about which parts of the report you take as gospel and which you handwave away as "speculation". From wh…
The report does not actually indicate which "manually" the pilots meant, with the switches or with the trim wheel. When the question came up they went and turned the electric trim system back on and appeared to test it (only trimmed 0.2 units). Honestly if I had just turned the thing back on I would have trimmed it all the way to where I want it.
This isn't consistent with any coherent reading of the transcript:
> At 05:41:46, the Captain asked the First-Officer if the trim is functional. The First-Officer has replied that the trim was not working and asked if he could try it manually.
They've already hit the stab cutout at this point. Now maybe they're think this is like the older 737s and the cutout cut the autopilot and not the full electrical, BUT if you think the question he was asking was whether or not he could try the thumb switch, what exactly would he have been trying prior to that that "wasn't working"?
There is no other trim to try before the thumb switches such that you'd refer to the thumb switches as "trying it manually" when $OTHER_THING was not working. In the transcript, given what's being said, it's clearly the wheel crank that's meant. It doesn't even make sense otherwise.