If you think music and art are entirely about skill that's fine, but I personally am not interested in hearing anything further about your opinions in that case.
This is a bad take, but unsurprising when most Western culture still lauds virtuosity playing and "skill" over most other things. If it's a cultural dead end it's because of the culture not the idea.
That aside, John Cage was having these ideas when they weren't as obvious as they are today and we have the benefit of hindsight. Dismissing that is also a pretty ignorant mistake.
Wack and over-priced, like most of the electronic music gear HN fawns over. You're absolutely kidding yourself if you think this is somehow more capable than a computer and a controller. Elektron loves "prosumers" tho so keep shoveling money at them