this is utterly crap.
right after his death, they searched the vaults and happen to find a song that matches the "This Is It" Tour Name, which actually isn't the original song called "This Is It" written in 1980 and produced in 1984. But another song which isn't even called "This Is It", wrap it up under the name and shake every cent out of it.
And now they come up and say, there is no more!?
Everyone knows there is enough for at least the next 2 decades, almost complete songs, demos, rough demos, reworks, cancelled projects. If they would just leave them as they are, since Michael is not here to make the final touch on his work, at least let his audience enjoy his voice pure as it is. and may be let the fans work on the incomplete tracks, meaning release the album rough as it is, and let it people play around it, tune it, remix it.
Thats what the internet is all about, sharing and feedback.