To be honest, I didn't really like the art-style when the first screenshots were released, but now that I have had the time to get used to it, and with the release of the newer screenshots, I'm really starting to like it a lot, it's an unique style. It might not be ultra realistic, but it is very clear and shows what needs to be shown.
And as has been said in this thread more than once, graphics ain't everything. The game must be fun, stable, fun immersive... did I mention fun?
The first beta will be only playable on the cloth map, and the goal is to make the game fun playing it that way without any detailed graphics, and I think that's the way it should be.
I've played Supreme Commander for a bit, but I didn't really like the gameplay, same with Crysis. So I think the whole 'Aaah, game will fail, graphics are bad!!!' thing is really an exaggeration...