I'm just finding some of the Jacksons official fb-site postings bit weird. This is perhaps most contradictory of their official way to speak about the hoax
above this posted picture was a text "We must still dare to believe..."

Their cover photo is also nice 
This is it on background and 2 big videocameras pointing at them.
So, the page isn't an actually clue but almost everything on the site is about Michael, not about the Jacksons!
The "We must still dare to believe..." postings message with Michael drawing has a quite obious message.