Worldwide, if the vibrato has been 'extended' and 'processed', why would it sound like that? Have you slowed down the songs and listened to how it sounds? Seriously, the breathing technique when that vibrato is sang is in such a way that it would have to be sung in that laughy way.
Can you please explain to me how you go from a natural vibrato to the vibrato that is laughing sounding because of BREATHING?
Also, why on nearly EVERY line would Michael's voice need processing? There wasn't a SINGLE FREAKING LINE HE FINISHED THAT DIDNT NEED PROCESSING AT THE END? NOT ONE? WHAT THE HELL!?!?!?!?!?!?
In my opinion, if Michael had sang these songs for real, there'd at least be portions of the songs where you'd be able to tell it's him. There isn't one part of these songs that I'm certain it's Michael, yet when I'm listening to every other Michael Jackson song ever made in the history of ever I always know it's him.
Also there are damning moments in the comparison videos where Jason is basically busted doing the exact same identical sounds in the same exact identical way. He makes identical gulping and yelping noises I don't hear Michael do in his songs, if you could find an example and make a comparison we would all appreciate it.