The article critizes the move to new UI while the old ones have been removed (as many other people do that, too). Although, the Roadmap for 2.22 contains that one of the old UIs should return I won't make any promises. The task is obviously pretty complex and the new "old" UI should get enough testing, as well.
In addition, my main focus will be new-stuff-manager in the next release cycle. I'll start working on new-stuff-manager very soon. If new-stuff-manager is in shape I'm going to improve new-stuff-manager support in Deskbar isself. Therefore, I don't know when that taks is completed. Till then, I will limit my time working on Deskbar.
But you could help. I'd love to assist anybody who wants to step up and implement one of the old UIs (which one has still to be decided).