Every genre of mucic reaches a pinicle of perfection whereby it cannot be exceeded by radical changes. Indeed there's nowhere to go beyond perfection so one has no choice but to stick to the masters of perfection--Mozart, Beethoven, Rachmaninoff, etc.

Most 20th century radical experiments in classical music ended up as crap that not one in a hundred can stand.

I count perhaps two dozen composers between the baroque and romantic periods to be be of acceptional interest, comprising maybe a thousand inspiring compositions. Yet turn on any clasical music station and they will be filling the airways mostly with drab, boring, incidental offerings. I guess always pushing beyond the masters of perfection makes the hosts feel more sophisticated than the average classical music lover.