My thoughts as well.
Besides with film its more than just resolution that people like about it.
See my post on the last page. The figure can easily be arrived at just by looking at publicly available mtf charts. Conveniently, it's what real-world tests have shown, too.
That said, the fact that Pfister's shooting anamorphic complicates things since the lenses aren't as good but the sensor is twice the size.