the initial nose down command was way before the THS was stuck at 13 degrees. That started about 35 seconds later in the sequence at 2:10:51. And as I read it 2:10:51 was the start of THS movement from 3 degrees to 13 degrees.
1. that what you're referring to, sir, is in no way officially connected with BEA and it might be realistic representation of DFDR data or it might not.
2. if, and it's a big if, it's correct and accurate, trim started moving at 2:10:50 and stopped at 2:11:51. Apart from comments about giving mostly climb commands, it can't be seen what was the sidestick displacement or what sidestick was active at all during the period.
3. while we wait for DFDR traces, I'd like to once more remind fellow PPRuNers about AC Doyle's warning on theorizing without facts, the one I've quoted a couple of posts ago.