It’s a different tool. Krita is for painting. GIMP is for image manipulation.
I’m assuming you’re not a professional programmer though, as professional programmer salaries are much higher. If Krita does more, it’s though sacrificing time, giving it away free. Not everyone is in a position to do that. You either pay for good developers, or hope for the sacrifice.
Maybe I’ll try your approach and just bash projects, I’m sure that’s productive and helps open source improve. Feels a wee bit negative though…