no. developers everywhere (but nowhere near "all developers") are forgetting the fundamental advantages of hypertext and are often commanding high salaries despite their staggering ignorance about how to build user interfaces.
we should be trending toward mostly perfect UI paradigms in certain use cases, yet every few months, for no reason at all, user interface designers make huge changes and wreck everything. only rarely do user interfaces get better with such changes.
where is the UI which made large, sensible changes early in its life, favoring smaller and smaller changes as the perfect interface for a particular set of data and actions makes itself obvious? I can't remember the last time I saw one. some games, probably.
I maintain that games probably produce the most usable UIs today, in many ways. they are usually very well thought out, each page usually has a single purpose, and each screen provides all information needed to make a decision or change on a single page, whenever possible. and game UIs are FAST.
I'd love to see a motivated game designer have a go at Service Now or any other contemporary enterprise software, really.
it's very much like web designers are learning less as the study of electronic user interfaces matures. if you judge this by web or mobile user interfaces, you have likely lost all hope that a single semi-sensible design will ever emerge.
designers are very good at making things look good, don't misinterpret me. usability does not seem to be getting better, though.
I welcome counter-examples.