The MLB studio crew has a much more rational take on the Mookie/Altuve call. Their take is that there is not a better shot of where Mookie and his glove and the fan were at the point of contact. There is as much evidence in the video that we have that Mookie was high in the air but at the wall, not over it that there is of Mookie being on the fan's side of the wall. If the fan is reaching even slightly across that invisible line that extends up from the wall itself, then its fan interference.
The only video that would have been anything like definitive would be the shot along the wall that the Security Guard unfortunately blocked. West made the call he made immediately and Chelsea NY could not overturn it.