The first officer was probably in the same situation that many FO's find themselves in when confronted with a non-conforming, SOP-light, Charactar Captain; i.e. watch the shop as hard as possible and do something when the something unsafe happens. Which it always does. As in this case when a sportsman belonging to a team of sportsmen who collectively have a criminal conviction are allowed onto the flightdeck.
Pablo broke a black and white rule.
I might do the same.
You may.
But I wouldn't if my employment record already held issues. Would You? No. Are you therefore happy with his judgement? With your kids as passengers?
Are you?