They could have 3D Touch on the right side to go back to the home screen (like you left tap for the app switcher).
Assistive Touch is under the accessibility settings for a reason. 🙄 It's not there for everyone to use instead of the home button, it's for making certain things easier for those who can't use their hands very well - Can't use the buttons, can't do certain gestures, shake the device, or even double tap.
It even has a specific 3D Touch button now.
I had to set my touch sensitivity to light, and I'm still having problems not making my apps change to wiggle/delete mode.