Does it, though? [Ron Howard voice-over: No, it doesn't]
For a long time, the dominant mindset in contemporary concert music has been one of heavy-handed and sometimes downright frivolous convention-breaking. This mindset ignores an obvious problem: once convention-breaking is common, it's not only aesthetically problematic, it's also its own convention, and therefore self-defeating as an artistic goal. Classical music doesn't need more of that, it needs less! Music should get back to drawing people in the way it traditionally did in the past, with depth of emotion, beauty and subtle ingenuity. It may not be as easy as adding ping pong to a concerto, but it's definitely worth the effort.
This post got kind of long, so here's a tl;dr summary for those who aren't ready to commit to a long read, or only have 30 seconds to spare:
1. The culture of contemporary classical music (or a highly influential subset within it) is obsessed with an often cheap, surface-level notion of innovation.
2. This modern version was not much a value to musicians and composers before the early-mid 20th century (not coincidentally, when contemporary music lost its way and became wildly unpopular). Nor is it the reason that we appreciate and love past composers' music. Today's musicians and historians betray their modern bias in trying to force a norm-breaking narrative into music history.