This is actually normal in the crypto world.
Because of the cost of listing on an exchange, most coins end up on one or two and thats it.
Even if they get listed on more, all fo the trading volume ends up on just one or two anyways.

Also, the days of getting listed on many exchanges or good exchanges being a big thing are over.
In the past, if a coin got on a good exchange, you could expect its value to rise dramatically.
This just isn't the case anymore so you shouldn't use it as a measure of potential.

As far as MOAC goes, I've heard some good things, also some bad.
Like every single DAO project out there it is hard to say because DAO itself is a totally brand new area and speculative.
I would say compare MOAC to other DAO projects like Daostack, wings, or district0x and decide which one is best.