> I don't understand this obsession with mouse-less text editing

For your information: the issue with mouse-laden text editing is that you need two hands on the keyboard to type, so you are repeatedly moving a hand between the keyboard and the mouse. This takes time: in my experience enough time that it's often faster for me to use keyboard navigation _anyways_. Plus the constant wrist motion can be bad for RSI.

That said, if you can edit more efficiently with the mouse, and your wrists don't hurt, then go for it.