I think you just answered my question, indirectly.
Intercytex stated on their website that they are taking more than one follicle - 100 or so, I believe. They need to do this, because if they just use one single follicle for the multiplication process, then there is a chance that all of the new follicles will go into the telogen phase at the same time, which would leave the implant area bald for a long time, until those hairs start growing again. So I think they are thinking ahead in that respect, and if their thought process went that far, they are probably well aware that they shouldn't mix DP cells from multiple hair follicles during the culturing process.
Man, I can't wait until they give another Phase II update next year. Some photos would be nice, too.