TRI does not know how to pull REP15. MCC does not know how to interpret it. Hmmmm, 2x.
There's not much what the individual pilot can learn from this report, which is a huge organizational elephant and actually poses more questions than answers.
Except this one: "the bus" needs to be flow THROUGH 50 FT with proper pitch (2-3 deg) and stick released. Other than that, i.e. any active lateral input at the 50 stab trim freeze gate and your're for an unexpected ride in the flare.
With a heavy A321 and a nose-down input, it is one of those experiences that you try hard for the rest of your life to make sure once was enough.