Of course it has only been added to Bittrex because they have been paid. That is how a coin becomes a sponsor, they pay Bittrex some money.
It has nothing to do with community or market demand.
Yeah, I recently saw a post from a coin I am invested in and one of the community members contacted Bittrex and they said they would add the coin for 3 BTC. A hefty price if you ask me.
It's obviously not about community support. This coin has a thread of 15 pages and more than half are the dev and his team. Judging by the volume thus far it won't be on the exchange for long either.