There's actually some good music in Enterprise. The restrictions were being lifted and the composers were able to do more interesting things, though of course nothing like TOS had.
You're being wildly generous.
There really is no comparison between the music from "contemporary" Trek television and TOS.
Plus, it's pointless to compare, as times and tastes have changed so much.
It gets to the point. The final arbiter in TOS music was Bob Justman. He hired and fired the composers, and it was he who decided that a particular episode needed a certain composer. If he could afford one.
We owe him.