I’m not knowledgeable about any of this topic, as I don’t do video editing, but FYI - all KDE projects are majority community-funded and volunteer-developed.
If I can offer a general suggestion (and then I’ll get out of the way for folks with actual subject knowledge) - if you would like to see things change in a KDE app, look for ways to get involved in development directly, or support existing work. I don’t believe making ultimatums to volunteers is the way to do that, though.