Mr.Toad: Do you have to readjust eccentric hubs after every ride? Didn't know that....Why?
Maybe a slight exaggeration, I have to adjust every 3rd ride or so. If not the chain is so slack it starts flopping around and gets dangerously close to hitting the stays, plus I like to keep the slack as consistent as possible.
In any case, riders who ride geared bikes have never been enthusiastic about slider dropouts: too heavy. I'd never buy a slider dropout equipped bike, unless it was a 26er (you can slide dropouts outwards to use 27.5 tyres). Mr. Chance had probably decided to present a first model to satisfy the majority of the customers, and I suppose they'll offer Paragon dropouts as an option as the YO reaches full production, as Dean, Moots, and all the other custom builders do.
Totally agree. There is no reason for over complicate the frame if not necessary.