For example, Webern's 3 songs Opus 18, composed in 1925 (
The fact that some of us are well aware of the kind of discipline that's required to play such a work, does not necessarily differentiate it from "chaos", self-indulgence or whatever other term might be used by many listeners to refer to it as basically nonsense or non-music.
In my opinion the genie is out of the bottle and, as Frank pointed out on more than one occasion, there will always be freaks - those who painstakingly notate weird shit, the ones who prefer to just whip it out and jam, and those who do some of this and some of that depending on many imponderables.
Now, if you need to survive, well, that might require bottling up the freak now and then and relying more on the beauty of a steady beat...