Personally, don’t think a “revolution” is really necessary, per se. The app is pretty sluggish — presumably because it essentially is a webapp — so I think improvements in code efficiency and speed would better to prioritize over dramatic interface overhauls.
It also would be nice if Pinegrow’s interface was tweaked to better conform with the interface standards of each operating system, but that’s a lot of work and the developers already have said that isn’t going to happen.