Now see, i can see your point with the aid of that pic right there. You run a different wheelset than the originals, so with a big wing fitted, you revo would just look stupid (sorry, i am merely trying to validate my point). Since i run the original wheels, the bigger wing looks more "in place".
But for me, running without a lid as i tend to do, the big wing is a great addition. when i DO run with a lid, the wing adds to the point of not scraping the engine head, and is a good flight aide.
That said, my project revo will be having a 1/8 wing fitted to fit in with the different wheelset i will be running and the general "Look" that i am aiming for.
So you see, i don't have anything against the smaller wing, i just prefer the bigger wing on the "standard" revo and a 1/8 wing on my project revo.