That's not the context of what Lisa actually told Rolling Stone in 2003:
"You get sucked into the ‘you poor, misunderstood person, you’. I’m a sucker for that. Then we sat down to talk, and he was so not what I thought he was. He was very real — he was cursing, he was funny, and I was like, ‘Wow.…’ I fell into that ‘You have this whole Howard Hughes thing that goes on in the press, and you’re not anything like that.'”
But why wouldn’t he want people to know that?
“I don’t know. I think it worked for him to manipulate that image for a little while. The hyperbaric chamber thing and all that monkey shit and the elephant shit. It made him mysterious, and I think he thought that was cool. But then it backfired, like it always does.
“I was always saying, ‘People wouldn’t think I was so crazy if they saw who the hell you really are: that you sit around and you drink and you curse and you’re fucking funny, and you have a bad mouth, and you don’t have that high voice all the time. I don’t know why you think that works for you, because it doesn’t anymore.'”
She was talking about his public image and how the public perceived him. This was their first adult meeting about her potentially joining his personal record label. She didn't in the end.
Michael Jackson definitely thought being mysterious worked. It did for a good while until it didn't anymore. By then, too late to do anything about it.