This seems to be a perennial problem of open source content creation tools, ever since GIMP in the 1990s.
Developers love to tinker on fancy individual features — stuff like the "AI and computer vision" mentioned in this release's headline — but the core workflow gets no love and/or is actively designed against the expectations of users trained on commercial products.
There are of course successful counterexamples. Blender has managed to overcome this perception by changing its UI and engaging with artists. Krita is an open source painting program clearly designed by domain experts, not just CS students looking for an algorithm playground.