That close to the gnd would you honesty get involved with an A/Th problem and try to fix it by disconnecting it?
I would say that the best option is to Goaround especially if something doesn't look right but that's another story..
I don't believe the facts as Reported by the Capt. Asseline, and I think post-trauma defense mechanism are involved in what he says (I am not saying he's a liar just that he cannot be the only source of info.)
You sy the FDR has been manipulated, the day you have some proof, ok I will believe you.
Untill that day....
Speevy