It's good enough for the mostly tech-oriented users that interact with it though.
But their implementation of this philosophy seems to be - "don't think whether it's a good idea to put this button here, just make it an option in the settings". Which is clearly wrong.
Why is that?
Citation needed. From who? From where?
The latest KDE iteration has advanced in this regard in leaps and bounds, which is evident also in the favourable reviews it's seen. Just google for "plasma 5.2 review".