Advertising on coinmarketcap is expensive. Its one of the best place to advertise but its expensive. I wont advise that Dreamr go on to spend that amount just for advertising. I think they should pay more attention on the app development. If you read through the whitepaper, Dreamr doesnt seem to be an app that would have much of its users interested in blockchain technology or how blockchain tech could help their dreams. Its just going to be a social media platform to them.
I agree with you that coinmarketcap advertisement is expensive. However thats worth spending instead of making other boring and vague things. See the success rate if projects advertised in CMC.