It caused by the majority of those projects are new project. Remember when we can choose the right project and we will get a lot of advantage from there. Remember about jarvis network token and it has been paying a lot of money to the hunters.
instead of just new projects, but sometimes there are old projects that have not yet entered the popular market, for example like easyfeadbeck they have made sales at tokpie and almost 1 year more have not yet entered the popular market as well, even though their project is in my opinion an active project
reason for this is because listing also need to be paid by owner of the project and if you want to list in popular exchange you need to also pay higher amount than normal listing from other unpopular exchange.
At the same time popular exchange can't decide to.list their coins without reviewing a project, its not that easy to be listed there.