I play in pit orchestras sometimes. And this article was interesting. It’s very true that orchestra sizes seem to be diminishing. Last couple of shows I’ve done have been “abridged” versions, where we have 2-3 reeds (out of 5), 1-2 strings, 2-3 brass, and rhythmn section. Most of the other stuff, if it’s being covered (usually doesn’t get covered), is done with Synths….
Regardless, the author makes some valid points about sound quality.