To promote technology, often it's not about how impressive or complex it is, but about having a low barrier to entry, being easy to learn and spread, and most importantly, being easy to use.
Even if one is not a professional, without professional training, as long as they follow the written procedures in order, they can get it about right, and that's the essence of promoting technology.
Those things that are insanely high in threshold and so technically complex that non-professionals can't understand them at all and which cannot be replicated outside of stringent laboratory conditions are highly unfavorable for dissemination.
