The authoring, both in rich text and in HTML is indescribably awful.

The tag applications still do not work reliably, and both interfaces are clearly slower.

Either this is an attempt by Google to drive people away from Blogspot to justify their shutting down the service, or their programming team for Blogger needs to be fired.

I have no clue as to who, and how, they evaluate user interfaces at Google, but these folks need to be fired too.