Word to describe when a person is interrupted by a trivial correction, distracting from the point? [closed]

Is there a word for a "technically accurate correction, but one that nobody needed. Something that causes a digression, which may or may not have been an attempt to diminish the original point by making it seemed flawed"?

I think there should be.

Red Herring doesn't seem to fit, because the context isn't a debate. A specialist of any type (Grammar, English, engineering, science, history, etc) are prone to making this mistake in mixed company.

Perhaps a nit:

: a minor shortcoming
_{Merriam-Webster}

This is more often used in this sense in the word nitpick.

How about a "Pedant" (n.)

a person who annoys other people by correcting small errors and giving too much attention to minor details

• Merriam Webster

"All too often, science fiction provokes the pedant in professional scientists, for whom a beautiful story can be ruined by a single petty error." —Jerry A. Coyne, New York Times Book Review, 10 Oct. 1999

Or "Pedantic" (Adj.) would probably work better for your usage.

Having gone on a tangent seems right, which is discussion of a mostly irrelevant part of the overall point.