Xyth and Xeyniu models may be worth of them and they'll surely get a lot of money, so it can be seen as a success.
They do hurt some of the customers (some of there that were loyal before) with their exploitative models. I know they probably don't care about that but it sucks seeing some of your creators that you were able to support making these changes, that makes you unable to support anymore.
At the end, I think sooner or later your stuff will leak, may take more or less but as we can see Xyth and Xeyniu stuff still leaks, and basically everything created ends up leaking (games, movies, whatever stuff you can imagine). The question to me is more what kind of offer you do to your customers.