Bach commanded more respect from Musicians than the general music public in the decades after his death. The Baroque gave way to a lighter and more airy successive strikes, such as the Roccoco and then the Classical Style. The Bach revival cited in the OP was largely fueled by reviving the large Choral Works, as the keyboard works were well appreciated by the likes of Mozart, Beethoven and Chopin
The revival of Bach
Interesting. Bach is my fav classical composer.