Yeah, probably just mark the DJI Assistant 2 application and device drivers a POS; getting that DAT file isn't likely.
Either way, the whole experience today was insanely odd. There really wasn't any explanation from DJI support other than their "troubleshooting" procedures to check the firmware version of the battery, then refresh firmware, then re-link the RC to the AC.
I suppose it's a super rare instance that this happens, but it certainly seems like it could be very dangerous under certain conditions.
Getting DAT files from a newer Mavic running recent firmware is a bit of a lottery, depending on where they are stored. It may not be possible to retrieve the file.