Virtual Queue works if only a few rides have it. If you assume that park attendance keeps going up every time a new attraction opens, but you don't have everyone standing in a queue but out in the park as normal, the park becomes more crowded and the waits for everything else go up. There needs to be a balance between that and the situation at VB. I think Virtual Queue at this ride will be a good idea, as I expect it won't be that good and you'd rather not have unhappy guests who stood in line for three hours. However it's slowly turning into Disney's old FP system, and I don't think many more rides can have it before there becomes a problem.
Also I'm thinking way too far ahead here, but will they be able to limit anyone from reserving times at both FF and Fallon at the same time frame, considering you just get a paper ticket?