Well do you really think Guerilla would release a statement to pro owners saying "ah yeah, well we tried to hit 60fps, but we didn't have the horsepower." Guerilla is owned by sony, they'll tell you what you want to hear. The truth is HZD could probably hit 60fps at 720p on pro, most anyone would agree with it, thats a ton of resources left over. 1080p however, is not, and thats exactly what scorpio could pull off and what you will see it doing in some cases.
They push the hardware and were able to make one of the best looking games ever regardless of being on console or PC and you are saying they lie because they talked about it being targeted for 30 fps? Of course it was and all console games are made that way, they figure out what they want from a presentation standpoint and also what framerate they want, Richard from DF even said this, hell even back when Gears of War was being made for the 360 one of the VP's at epic said it was meant to be a 30 fps game and that if they had been able to make it 60 fps they would have just pushed the graphics more and kept it at 30. It's funny that you are willing to believe MS hype over scorpio but challenge what a dev who works for a studio that does some of the best work when it comes to graphics says.