Slag,
Exerpted from a website...but does that make it factual? I'm not a scientist, or physicist...but I think ,the dimples do create the lift, not just improving it. Think of those shots you've seen Joe Gorilla hit, where he takes a mighty blow, and imparts a huge amount of backspin on the ball. The ball actually rises as it goes. I doubt any amount of spin on a smoothie would have any effect.
I believe your dimpless ball would take off, airborn, based on clubhead loft (at impact), but would fall like a ton of bricks in short fashion.
Mind you, this is just my opinion, and not necessarily any more or less factual than the website exerpt!
Good luck in your search for smooth balls,
Joe
p.s. I believe that would be the first time I've ever uttered such a phrase.....