Your message was interesting and I agree with it up to the point where you say we could be trapped by Bach. There is enough depth in Bach to still fascinate us 300 years later, if it doesn't it is a lack on our perception ability.
On the other hand, I wholly agree with innovation in composition - Bach, Mozart and Beethoven (+ many others) excelled in innovation and were sometimes considered downright weird for their time. Even Chopin was considered weird and his music is the easiest to listen to.
As composers, is is/was their duty to be innovative, but us, as listeners, should try to assimilate all periods and styles, and the old ones have a depth of feeling that is rare today.