Hi,
I've never really understood the preoccupation that some owners have with whether their cameras have a flat top or not. The VF has to be somewhere and the obvious choices are top left, top centre or top right. I've never seen a top right VF, and if you opt for centre, you need a hump to clear the lens and sensor internals. None of which makes a mirror-less camera anything like an RF or a DSLR, despite the style epithets they've been given. For me personally, I'm left eyed, so the left corner placement of the VF window holds no advantages.
As a generality, I can see no reason to buy a body with a hybrid finder whose optical finder won't operate with half the lenses in the lens range. Even IF Fuji develops the X Pro 2 finder to operate at 16mm (ie for the 16mm and 16-55), that still requires recourse to the EVF for the 10-24, 14, 50-230, 55-200, 90, 120 and 100-400mm lenses. If one has to switch to EVF for these, and one finds that acceptable, one may as well just have the EVF.
I'm very happy with my XT1, so I probably won't buy either camera. But if I did, it would be the XT2.