Just for accuracy's sake, there is no "S/O" on any airliner these days,
Qantas, Air New Zealand, Cathay and several other airlines employ Second Officers (S/Os) who occupy control seats during cruise only, are in Jump seats for T/o and landing, and are entitled to call deficiencies as part of CRM practices.
So you'd be wrong there.....
Just recieved a communication stating that a software fix is on its way due to "A number" of cases of inadvertent A/P engagement on the ground, with consequent unexpected control forces, which had led to RTOs above V1, so I give some credence to that idea here.