I find it acceptable if the knowledge was tested. I'm not a scientist and therefore should probably not be engaging anyone on this level. But I wondered if this theory had been gone-over by a Paleo-Linguistics expert? I feel that many scientific fields are required to get a truer and more accurate perspective when combined with History, Archaeology, and Egyptology. I may very well be wrong in this. But it certainly makes more sense than "speculative guess-work". ;-)
Have a good one!