Is it not true that Tom is talking about a very common practice in the old analog studios that was known as "punching in." If a musician hit a wrong note, the engineer would wait for that very spot on the tape and press "record" for just long enough for the musician to sneak in the correction. Sounded natural. The alternative was to manually cut the tape with a razor blade and insert the correction. As multi track and mixdown became more sophisticated, other techniques developed.
We are in the age of the DAW. The tracks always sync. Wouldn't the easiest thing be to re-record the verse, using the same accompaniment as the original, mute the bad part, move the good part around on a separate track until the timing matched?
That all speaks in favor of consistency of production standards, in case you have to go back into a production later.

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