Wouldn’t it be much cooler, if we commissioned an actual artist for the banner
I hate it when AI is used to replace the work an artist would have been paid for. But uh, this is a random open-source forum; there's no funding for artists to make banners. Rejecting AI art -- which was voted for by the community -- just seems like baseless virtue signalling. No artist is going to get paid if we remove it.
But like if you want to commission an artist with your own money, by all means go ahead. You'll still most likely need another community vote to approve it though.