It is more than a bit harsh to criticise Boeing when the pilots so mishandle (overspeed) the aircraft it is completely out of all parameters for the trim to work, and neither do they take any recovery action - ie slowing down.
So we're test pilots too now? No mention anywhere by Boeing of keeping the speed down, these guys were probably totally focussed on the MCAS issue, not your bog-standard UAS/80%. Ask yourself: when did you last pull off a handful of thrust at 1000ft above ground, straight after takeoff with the stick shaker going? I would suggest that some pilots don't even touch the thrust levers after takeoff normally, let alone have it in their muscle memory to do it when all hell has just broken loose.
I suspect watching the crew deal with the multitude of alarms and contradictory instruments readings, plus proximity to the ground, on the two Lionair and one ET flight would focus professionals minds a lot more on the human factors issues of these emergencies...
Any professional pilot would already have a very good visual concept of what happened here. Absolutely no need to watch someone dying, thanks.