I feel it is important to mention that I have seen many different features come into beta and run their course and then get pushed out, but this was the most well managed and thoughtful beta feature I’ve ever seen run for Studio. The majority of feedback was quickly and personally responded to, and addressed where it made sense, the tools stayed in beta for exactly as long as they needed to, and the entire operation felt like it was handled very carefully. Granted there will always be room for improvement, but I found the way this feature was handled was absolutely excellent, and really stood out from the way things are usually handled.
A year or two ago myself and a few other users spent some time running around the forum trying to gather a bunch of these kinds of tiny feature requests and it was very difficult to find enough of them to make the effort worthwhile. They are simply too random and too buried to find, even if given focused effort. If you have small usability enhancement feature requests that don’t have complicated dependencies, if you still need them, make sure you’re bumping them occasionally with your new use cases to keep them on the radar.
Also, I would very much like plane drag handles, I remember making a post about this a while ago on one of the threads you linked, but they are by no means a critical enhancement to these tools such that their release from beta needs to be delayed to include them.