This looks completely random, but I trust it's understood where it's coming from.
Yes, I too have never seen anyone gposing in PvP (to my knowledge- as the camera icon that announces it can be disabled in the settings by the gposing player- which is an option that should not exist), but in any case there is no need for gpose to be available in PvP. And it's come to my attention that there are "illicit" capabilities possible in gpose these days- so taking this possibility out of PvP will protect people from illicit actions and only be a positive. In conjunction with this, the Frontlines maps could be added to Explorer Mode to thus enable these locations to be used for gpose shots without affecting PvP matches at all.