They are doing this a lot with more and more of the new TLDs. Defeats the purpose of even bothering with them. Create more, to open up the domain space, make it cost prohibitive, so we're back to where we started.
Adding TLDs doesn't open up the domain space; it closes it. The domain name system was designed to expand downwards, by adding more hierarchies. Downwards is where the space is. Expanding upwards is limited.
The racket ran out of space selling keywords inside .com, where this was originally meant to be confined. Once they finish selling keywords at the root, that'll be it.
The current "problem" stems from the fact that .coms are full. Once the TLD space is full, the same problem will remain. Everyone who wants one cannot have a memorable name in a flat namespace. There are too many people and there is too little room.