I submit that typing speed matters, but only as a component of what I'll be unoriginal and call actions per minute (significant APM, to be precise). More important components of SAPM would be pushing blobs of text around (editor knowledge) and manipulating/filtering blobs of text efficiently (Unix toolchain).
A 60wpm developer who uses rectangle commands and pipes a portion of buffer to shell to transform it may have higher SAPM than a 150wpm developer ignorant of the various shortcuts available.
To further flog the RTS analogy: typing speed and keyboard shortcuts that operate on one line are micro. Regex replace, sed/awk-fu, multiple buffer usage, etc are macro. To be an efficient dev both are necessary but not sufficient -- all the micro and macro in the world can't save you from brain-dead decisions.