I would call this a Beta, if there wasn't this build-up in the story during the time I play.
A Beta substantially is needed to spot bugs and so, in an user-oriented way, and there come Close and Open beta.
For this game you paid for this, and if you've noticed it's not simply a beta testing, but by the time you play you can notice story continuations, new lore and links with them, thing that a Beta will Never give to you.

You can't tell this is a Beta, but an Undeveloped World.