It's a shame that Apple discontinued 3D touch. That thing was so cool and working so well, but not enough developers used it apparently.
The issue was discoverability.
If your design language is “flat as we can make it” how can you visualise a third dimension? You have to already know which things are 3D touch ready.
I blame the software refresh of Apple after the 5-series UI language was removed. Minimal mechanical design with rich complex software is a beautiful contrast that strengthens how both feel.
I think they are talking about git force push, not 3D push, but yeah, I liked the concept of 3D Touch too