This is frustrating, I have had a growing distrust (and just frustration with the software in the first place) of DisplayLink with the Dock that I use, I would love alternative software.
This also just seems stupid to me, you don't pay for the DisplayLink software you pay for the hardware. More options for how to use your hardware would be a good thing to them would it not?
Though it sounds like much of the issue was that it wasn't really "clean-room" which is a separate issue. Though unclear if that really is at the root of it or not.