I’m going to take the bait:
I know a lot of people don't like that but sometimes I feel that FOSS projects are intentionally sabotaging themselves by ignoring industry standard options/conventions and instead they are following open source ideas just to be different. GIMP is the perfect example of that and generally speaking UI/UX is the main symptom.
Blender was able to move forward by not listening to the FOSS crowd but to the industry. And see where are they now compared to GIMP.
So GIMP has a larger user base than Blender, what is your point ?
important here to remember that Blender was created within the industry as a commercial tool. When open sourced the leader of the project remained and knew quite well what separated a good creative tool from a bad one. It was always situated in a position where the core users were either hobbyists or professionals.
Gimp was never in such a situation.
Culture is important.