For one, parts of the story are corroborated by Michael Jackson himself, on camera, way back in 2003 when he gave interviews saying he slept with boys and that there was "nothing wrong with it."
This is a much deeper look at specifically what went on. It's really not so much the sexual allegations that are shocking people, it's everything else, much of which even his defenders do not deny, that is making people say "yeah, this is fucked up."
Like, back in 2003, he'd admit he slept with boys, and there was nothing wrong with it, and people would say "that's not illegal!" But nobody really thought what sleeping with boys actually meant. Back in january, ahead of this documentary, a boy who has refused to sue michael jackson, who says MJ never sexually molested him, gave an account of what exactly "sleeping with MJ" was like, and well...
https://www.mirror.co.uk/3am/celebrity-news/michael-jackson-called-rubba-rubba-13912812
"When I slept in his bed, we wore just boxer shorts and he would put his arm around me and push his body to my body, like you would with a girlfriend.
"He would put our bodies on each other and kiss me on the head and cheek. I woke many times and his hands were on me... one hand on the top of my legs and one hand around me.
"When he was high on his medication he would get closer in the same way as when a man gets drunk. It disinhibited him.
"He'd pull me closer and be grabbing me more and kissing me more on the head and on the cheek, He would also stroke my hair.
"He never carried out an explicit sexual act on me, but there were sexual intentions.
"He must have been getting something out of it sexually. I feel now like he was testing me, seeing how far he could go."
So much of the documentary is a pull back just like that. It's extreme, corroborated details on every bit of the grooming, not just the sexual stuff that the trial and everything before concentrated on. All the previous trials were basically centered around the question of penetration. This says, even if penetration never occurred, everything else, including the shit Jackson himself readily admitted to, is beyond fucked up in an awful way. Once you understand exactly the shit that "wasn't illegal" that Jackson doesn't deny occurred, it makes pretending that there was a line that jackson didn't cross unbelievable. Because, supposedly, that line was never crossed for moral reasons, but everything else he did was objectively awful and immoral, that it really doesn't seem logical that penetration is the lone line he wouldn't cross.
Again, there are things in this documentary told in extreme detail that nobody denies. It's just that, prior, they were described vaguely using terms like "sleeping with boys."
To give an example of the fucked up shit Jackson did, he basically convinced one woman to leave her husband and move half way across the world on her own with her 7 year old son, with the 7 year old assuming that Michael Jackson was going to be his "dad" from then on, and then dumped them when they arrived in the US. And absolutely nobody disputes this!
Really, just watch the documentary. It makes the case very well.