i don't know about you guys... but a grin to me points up, like a smile ... that rocket is NOT grinning... it's grrrr'ing!!
Whatever it's doing, it looks stupid... first rule of logos: Don't put teeth on anything that doesn't have teeth!
You guys have never seen nose art? Don't tell me you've interpreted the Rocket as actually having a mouth all this time.
It'd be one thing if the logo was a B-2 Bomber like the Aeros but it's not. Who paints teeth on a rocket?