You continue to own the game, you just cant play it until you buy more tokens. You still own the game though. Yeah, it sucks it is beta and you have to buy more tokens through this page to keep buying, but that is the economics of it. If an average person plays it for 5 hours every third day or so for the first month, that could wind up costing 50 bucks per player, and that is discounting the people who get absolutely sucked in. If they get 50 players per month, that would mean 2,500 dollars per month.
This is a small, mostly volunteer group that has very limited resources. You can't expect them to shell out hundreds or thousands of dollars for the beta test on a big scale. This is at least among the first project of its kind, so the financing side of a game like this is very unclear.
You act like they are making huge profits off of this, but I am telling you they are absolutely not. Hell if they just wanted money, why did they add localized voices (that are admittedly and obviously lower quality) to cut token usage by half? You are acting like they are just going to be rolling in money, but they aren't. It is painfully clear you have no clue what you are talking about for the financial side of things. This is a small team working on this project from their own resources; it isnt like a billionaire is backing them, and they can just do whatever they want.