I dont know about any special requirements for exchanges, but getting listed on coinmarketcap doesnt change the fundamentals (good exchange, token is pretty stable in this bear market, already multiple trading pairs, ...)
This does not means nothing as they almost don't have volume right now. Thats why price seems stable. If you want to sell tokens (at last some big amont) you probably can't do this, as there is very small volume and price will drop. They going to list token to another good exchange or their token will be trading at their own exchange?