you mean when he is on the field... seems out of his control.
stats are Porecki is performing worse in key areas lineout and discipline.
Well it's not always the last 5minutes that was just one example of the added pressure.
None of those stats show the the reason for the line-out losses. It's not always the Hookers fault. I think it is very clear that Fainga struggles with his line-out throwing, Porecki is much better in this department.
Although I do agree with some of your arguments. The perception Porecki is well disciplined looks incorrect, and Fainga's ill discipline over-blown.
I like Fainga much better around the park too. He probably has the best body height into contact in the team, it's no wonder he finds his way to the try line often.
One thing your stats won't change my mind on, is that Fainga has issues with this line-out throwing.