Damn shame.
I suspect your crashes may also be related to dependencies, not some deficiencies of the application itself. Try a different build / AppImage / Flatpak, and see if you encounter the same problems.
I do think that the idea that each toolkit has its own native app for each thing you might want to do with a computer is a recipe for a forest of half-maintained nearly-good apps. A lot of the KDE and GNOME app suites feel like checking boxes.
(Same story, shotcut → kdenlive.)
Kudos for keeping improving Kdelive.