The second flight totally did get to the turn-it-off stage. They turned it off multiple times. Unfortunately, during that process, they neglected to manage their throttle, leaving it at near full takeoff thrust the whole time, and reached a very high speed. Thus, while they could turn off MACS, they were unable to manually restore trim with MACS off due to the strong physical forces on the stabilizer. There was probably a recovery path for them where they lowered speed, then corrected the trim manually, but they didn't see it.
I have no idea if this person knows what they are talking about, either in total or for any particular bit of information. Also, why create a filter between me and the original report - a great benefit of the Internet is disintermediation.
Personally, I find original reports from experts to be much more clear than the attempts of others to digest them for me. To write clearly, you need to know what you are talking about. The better you know, the more clearly you write.
Some day, there will be an AdmiralCloudberg write up on it, but he hasn't done it yet: https://www.reddit.com/r/AdmiralCloudberg/