Yes, you are missing this: https://www.geni.com/worldfamilytree/learn-more
Just add a few generations and I am sure the rest of the 2000 already are in the world tree.
Наталия Машкова as Bjørn said, within a few generations, you will probably find s lot of them in the world tree.
I have manually entered all of the profiles I have entered, over 1500 total, so it is absolutely possible.
Gedcom is not available on Geni, so if you're not willing to do the manually labour to enter those profiles needed to connect to the World Family Tree, maybe you should just stay on MH. There is no other way.