I think the delay is not necessarily price but price volitility (as a few others have previously mentioned). Nasdaq has a major PR issue right now given SEC investigations, and will be wary to accept a company like PRED given price movement. The QX can both resolve the price issue as well as give the needed comfortability that institutions are hopping on to support.
I do agree that if it came down to price alone a R/S is not a bad solution, although another perception issue given historical use.