Though some of the singing is quite good, the editing lacked planning. It pans too fast, you can't see the choir very well and the images fail to convey a story.
Some of the voices don't flow too well together and crescendos build up at the wrong places as a result.
What was needed is to give the video a storyline, especially the Haiti footage.
They would have shown footage in immediate aftermath of quake
people's disperation and search for shelter
Camps forming up
Some relief efforts
And then that footage of people and kids singing along.
Panning between singers should have been smoother so that one can see the choir
Blending MJ and Janet should have been better done with fade in instead of instant appearance and then instantly changed to another shot
But it seemed to be a case of blending too much in too short a time. Shots, musicians, Haiti scenes - too much was used and ending should have been the choir with more time to be seen, not just one singer.
It's like if someone didn't have a solo part, you hardly saw their face. I had to pause in order to see who was who.