I think that everything is completely in the hands of developers. And since the exchanger is centralized - you can not worry about the listings.
Do you think that it is for this purpose that centralized listings exist? Take money for the listings of tokens?))
I believe that if the exchange is popular, then the earned money from listing other tokens can easily be directed to the needs of the project.
The main thing is that there was still a very ideological manager who could direct the business to a successful end.