I don't hear people saying the follow through is pointless; I hear them saying it doesn't do anything special to the tip/CB hit, but its point is to help prevent "hitches" in the stroke, exactly as you say.
pj
chgo
Follow through is imperative to a great stroke. Follow through does not make a great stroke but just becomes part of the stroke.
BUT
The length or amount of follow through is personal. Enough to finish our stroke naturally, but not to exaggerate the movement.
An exaggerated follow through could become "COUNTER PRODUCTIVE".
randyg