PAA, if he wants to disagree l’halachah, that’s one thing. But just because he doesn’t like his conclusion, doesn’t give him the right to question motive. Kol haposel b’mumo posel, so I assume that he himself paskens based on ulterior motives, and he projected his own shortcomings on a huge talmid chochom. As far as I’m concerned, that’s not a posek, and popa’s right.
I also agree with popa, no matter how much you want to nitpick, that taking a psak out of context and misapplying it is naarishkeit, not halachah.