A projector is good as the image it's used to project. The projector itself I have no problem with. If anything, I think there's some seriously cool potential in turning Spaceship Earth into a real-time photorealistic revolving globe, a pastiche of different multi-ethnic faces from around the world (like the beautiful
Crown fountain in Chicago), projections of famous works of art, maybe even a surface for constantly-streaming, stock ticker-style Twitter updates tagging #Epcot as a tribute to SSE's communication theme. Even futuristic Tron-like lines or effects like having the tiles flip around or switch places would be cool. Those concepts all would have dignity and sense of purpose in Epcot. But that doesn't seem to be what Disney has in mind.
For all the visibility and attention this projection is going to have, it may as well be painted on, at least for guests who will never see Spaceship Earth in its usual nighttime glory.