The OP was referring to "home-row touch-typing" as simply "touch typing", as nearly everybody does, so I didn't feel the need to clarify. I don't see how pedanticism helps here.
The first response, as well as myself, went from hunt-and-peck typing to non-home-row touch-typing. The first response was confused about why people have to put effort into "touch-typing" when it's something that comes naturally over time, like it did for us.
It's not useful to conflate the two. "Touch-typing" means "not hunt-and-peck", not "home-row touch-typing".