In short, the Max-8 ships with a shitty default configuration. After the first crash, the FAA and the major american airlines with these planes aggressively updated the instrument panel settings, warnings and processes to ensure pilots were aware if there was a sensor disagreement that could cause the MCAS system to accidentally stall. (I know this is true for Southwest, I assume the rest followed suit.) While the default configuration and the behavior of the MCAS system are both hideously awful, the FAA trusts their process to have fixed it, and I think their results back up the call.