> pretty niche technology

The main problem is that for a "niche technology" it sure infects too many standards, requires an insane amount of new standards and makes supporting things needlessly complicated.

A few links here: https://news.ycombinator.com/item?id=45114450

There are some good parts in the ~30 standards they require, but instead of just the good parts you get the whole horse, and the cart it's attached to, and the cargo in the cart.

> your criticism is that the people for whom Web Components is a good fit are publicly discussing the reasons why they prefer it over other solutions?

It's not.