It is no more "new" than other posthumous albums that cull his many outtakes. Jimi was extremely prolific and in just 4 short years amassed a mountain of recorded music. Much of it was loose jams or embryonic songs, which is what this release is mostly comprised of.
At this point the new releases are scraping the bottom of the barrel for commercial purposes. I'm not sure that they are doing his legacy any favors.
Basically, I agree with you. It's all about the money for whomsoever controls his estate. I noticed that quite a bit of is seemed like jam sessions as much as it did "songs," but it's still nice to hear "new" music from him anyway.