Actually the first deviation from normal on the FRD data released was the pitch showing constant nose up with a rate of about 30 degrees in 4 seconds, until almost 90 degree nose up after 22s.
Second sign, A/P disconnect about one second after pitch moving upwards.
Until AP disconnet all other values vas normal, 1G and no pitch or roll commands or movements.
Does not look like structural failure. There is a clear connection between elevator position, AoA and G all the way down.
And its quite clear that the pitch values(from IRSIRU) is corrupt.