I would say this is a little bit of a circular situation, because yes I agree producers are less inclined to take chances and meddle with the format, but also, I would say DJ`s are just as unadventurous in their musical choice as a whole.
DJ X only plays this sub-niche
DJ Y only plays this sub-niche
So it`s hard to produce interesting techno for a majority of DJ`s who basically just like ramming the loops together on the decks.