…so you came straight to the comments based off the headline?
It’s a great article that basically spends the entire time praising Cosmic for all the great things it’s doing. It does contrast Cosmic with KDE because it’s written by a dev who did things like the frosted glass feature and built a bunch of popular themes for KDE, but they really sell you on Cosmic. After reading it I’m considering giving it a second try, and I’m on KDE currently.
Seriously, go read the article. It’s solid.