I often wondered why Linux did not start a UX revolution. I suppose attitudes like Stallman's is the root cause, where attitude is given to "be-like-historical-me" rather than "lets-move-towards-the-future-together".
You have the source. You have the toolchain. If you want something different make it or pay someone to make it. Stallman made something that suited him and was nice enough to share it. Other than criticize the attitudes of others, what have you done?