Improvements to existing features are in fact considered "minor"You might want to go and research the "minor update"...
Just because the camera has more megapixels, the cpu/gpu are a bit faster, and touch id is slightly better, those are considered INCREMENTAL upgrades, not major changes
3D touch is simply something to make you do things faster than you were able to do before, therefore its not revolutionary
It is well known that major upgrades happen during the 5/6/7 phase, not the minor S changes
So maybe you should do research yourself before making such ridiculous comments