I too have worked with musicians that use the Sher books, too, that's why I am very familiar with the style of chord subs used in the books.
I grew up in New Orleans and learned to play jazz at a young age from master older players; we also had to play gigs that covered Dixieland, swing, big band, bebop, and fusion style jazz.
Frankly, you are correct in that the Sher books do represent the way a large number of players harmonize tunes in the current practice. The choices are often not my preference as a jazz player and teacher.
I recall one gig in the 70's when a hot-shot jazz pianist asked the bandleader about some fancy chords subs he used on some tune or other.
The bandleader, a well-respected player, conductor, and arranger, said:
"Substitute chords hell, those were just the wrong changes"
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