I would say this is an overall positive: The more people are aware of how easy it is to create fake this with AI the better, I would say. That would make people less likely to fall for it in the future, especially for something with greater consequences than just a parade that didn’t exist.
What do I think? I think it’s normal to have wallpapers that aren’t related to the kernel of you OS and I’m struggling to make sense of how people setting their wallpaper to something they like could possibly be a problem.