I've been wondering if I was missing out on the iPhone's 3D touch feature, for interacting with photos, messages, etc. The author didn't mention missing it, so I guess I'm not.
With iOS 10, I've started using it frequently, many times per day.
So the answer, at least for me, has changed dramatically very recently. If I were already considering a move away from iOS, I would never have started using the new iOS 10 3D touch stuff to begin with, and therefore wouldn't know what I was missing.
I use Force Touch every time I pick up my phone and especially on list views it allows for far more functionality. Touch Bar is nothing more than a nice looking contextual menu. I assume toolbars are a gimmick too ?