Do you accept everything? Are you enthusiastic for scammers that prey on rich sycophants?
The parent comment is right. Their logic is cyclical, they acknowledge that Teenage Engineering is widely accepted to be overpriced hipster crap, and then refuse to defend their conclusion that it's not made for the hipster audience. They do not posit what their "amazing inventions" are, or qualify their justification for buying two (!!!) OP-1 models, or link to the music that could only be made with the OP-1. They are responding to marketing, which is not a healthy habit of consumption in any market. For musicians, it's called Gear Acquisition Syndrome (chronic GAS).
In essence, you are criticizing someone for challenging a rich snake-oil customer.