What can’t I do with Haptic Touch that I could do with 3D Touch? They wholly replaced its functionality, as a cost cutting hardware measure, they profit more per device because they enabled the same functionality though software implementation. This is apples to oranges.
You just showed you had no clue what 3D Touch could really do. The biggest thing that was never replaced or could be replaced was the 3D Touch cursor. It allowed you to selectively select a word, sentence or paragraph with consecutive pushes without ever lifting your finger. Very similar to Force Touch on Trackpads. There were a few other things as well.
So anyone with a 3D Touch device completely lost that functionality with iOS13. It was in fact a hard cutover.