I actually prefer Krita over GIMP, even for photo editing. I can’t stand how bad stylus support with GIMP is and I much prefer Krita’s UI. I wish Krita would focus on areas beyond drawing more, as Krita is quite close to being a good program for editing photos in my opinion.
I have never used Adobe’s or Affinity’s products though, as they aren’t available for Linux and are therefore not an option for me. I would probably consider them, but those companies apparently decided that I am not worth their business.
I think they just aren’t sure how many instances you need right now (25? 30? all 50?) and that’s why they requested clarification for the actual resources needed. They don’t want to give you more than you actually need at the moment, so they don’t sit around unused for half a year until you actually use them.