IIRC the pilot handed control over to the copilot so that he could investigate the issue. The copilot stopped counteracting the trim. From what I saw on that

IIRC the pilot handed control over to the copilot so that he could investigate the issue. The copilot stopped counteracting the trim. From what I saw on that graph someone was trimming up as the plane nosedived. Take a look starting at the 23:30:53 mark. Someone was hitting the trim up button and MCAS was continuing to input trim down until the crash. The big problem with the preliminary report is the X axis, IMO. It's different on the graphs between the two flights, and there's not enough precision... but to me it looks like either hardware failure or the FO was simply not inputting enough trim up. They fought that plane all the way into the ground. Part of the reason that the MCAS got passed regulators is that it was not given enough authority to override the pilots. From what I've read MCAS as described to the FAA (relatively low limit on the down trim) was different than MCAS as implemented (about 4x larger movements allowed). Additionally it's not clear if the repeated down trim was by design or by bug. I think that even MCAS in its current state is probably something most pilots could recover from as long as they know what to expect. The way MCAS works now (both in terms of the amount of authority as well as the misdirection from "unrelated" warnings) combined with zero documentation is a recipe for additional crashes.