I'm surprised to see that so many people rely on 3D Touch.
I see so much potential in the feature and I really want to like it, but 95% of my apps do nothing other than use it as a way to share the app with my friends. I have so many apps where there are so many obvious uses for 3D Touch, so I try it out... but instead of a delightful result it is almost always a lacking disappointment.
For the 2 or 3 apps where it is implemented and I actually find the feature useful, the absence of 3D Touch on iPad makes for an inconsistent UI experience and so I end up not using it on either device.
If it's really essential to iOS 11, then Apple needs to include it on all iOS devices and encourage developers to implement it. Yes, iPads, and yes the SE. Same as TouchID, it should be across the board.