Indeed. There's another important bit that you seem to be missing.
Did you know that Peter Daszak, one of the "reputable international scientists" you speak of who helped investigate and author that report was himself the project lead for the US funded gain of function research at the WIV?
Who would be more inclined or in a better position to cover that up than him?
Today they are all being harrassed by anonymous internet users because their conclusion didn't follow some conspiratorial paranoid anti-China story. What does that tell you?
There are people out there who happily make up stuff to fit a certain story. And people who will happily repeat it.
You can bury your head in ignorance and let yourself be manipulated by the likes of Steve Bannon or you can choose to listen to people, who actually have qualifications in the field and who have a meaningful reputation to loose.