So, did a couple of things today to experiment further:
At first I tried to FF the ELDOB (1A081 in 366304 RS6 bin, right? I know that it's listed at the other address in that public xdf floating around, but still). And well, that didn't go as planned. Still getting the TC.
The second "check" was to change LDORXN (FF is only at 191.25 load, unfortunately) - and surely enough, the TC is not that severe anymore, with throttle closed "only" halfway.
Log is attached.
I guess I will try zeroing TLDOBAN next and see if that helps.
I'm just trying to do one thing at a time (and for now is to completely get rid of throttle cut in current config) before moving on to the next thing. So, yea, effectively I'm wasting time - but that's not the first time I do that!