Perhaps I was overly terse; I meant to do the opposite, with regard to the limited perspective represented in the previous comment!
> I don't futz; I just sort of want and the cursor is there and the paragraph is changed, etc.
Our strategies are very different, but it sounds like our experiences feel much the same. I don't really think about editing at all; my fingers just do what years of practice have trained them to do, while my conscious mind works on the actual problem.
I made my own quirky commitment to keyboarding speed: I learned to touch-type very young, using the Dvorak layout, and I've been cruising along at 100 wpm ever since. I have never learned QWERTY at all, so a normal keyboard cripples me - I become a slow, clumsy, two-fingered hunt-and-pecker, for whom getting any text into the machine represents a significant labor. (This is the primary reason I rejected vim, twenty-odd years ago - the Dvorak layout scrambled its command mode into anti-ergonomic chaos.)
In that way, I very much agree with your belief that typing speed matters! I have simply found it in a different layer of the stack.