Thoughtful intelligent people deserve to be included regardless of what regime they live under.
to put it simply, the taxes paid go to finance "whatever their government are doing".
also, do you think, like - all russians are against the war and don't have imperialistic mindset. it's just their government to blame? I'd say there is a decent part that got affected by propaganda both imprinted into education and news.
I don't know about the artists contributed to the journal (do you?), but in my opinion it is just a safer bet to find an artist unrelated to Russia.
apart from that, promoting russian culture (i.e works by russian artists) while it is actively destroying culture of other countries - means contributing to the process.
As I said, I don't make any claims about the artists in the topic. They may be good and intelligent people. I'm sorry if I expressed this point not clear enough.