From a photographers view this picture is next to impossible to take. There is bright sunlight on the plane and then dark shadows on half of the crowd. You can of course lift the shadows, but from my understanding this would be frowned upon if this was done by a photo journalist. Too much editing. As a campaign photo, it’s more like an ad, and should be seen as such.

I find it strange that the people in the shadows are backlighted, (the white outlines on everybody), where is that light coming from?

I don’t find it strange that the reflection on the plane don’t show any people, since the reflecting area is curved.

What I belive has happened is someone took a photo of the crowd, bussed in from who knows where, found that the crowd in the shadows were hardly visible (and would be invisible to people giving the pic a short glance), and decided to either enhance what was there using AI photo touch up, making it not fake, but giving it an unreal look. Or just used AI generative fill to add a better lit crowd, which would be as fake as Joe Biden.