Yes, particularly if you are working a fish which is of good size on a light weight or delicate rod. I suspect that in all but the most extreem of cases there would be little or no harm for one fish worked with out doing this, but since most of the boo folks like to think a good rod should last many decades and many owners, that might add up to a lot of fish. Also boo folks seem to love, cherish and obsess about a good rod. Fortunatly we are for the most part a harmless bunch and represent a danger only to ourselves.
AgMD