Yes. Photoshop, which is photo and image editing software for photographers, has more features for photographers than Krita, a painting program for artists.
That’s a pretty curt dismissal given that tons of artists paint in photoshop and have for decades.
Photoshop is a great painting app that rivals krita for painting. That it does other things well or originated for just photo editing doesn’t take away from that.
I think you misread the parent. He didn't say Photoshop is bad for painting. He said Krita is bad for photo edition.
I don't believe he misread. I believe he felt like the reply to the other users post was needlessly curt or snarky, which I'd agree with.