You miss the point, SS. Scratch One says himself that he's not interested in the horse issue. (He's already decided that one, at least to his satisfaction.) He's interested in the names and assignments of personnel at the Maxwell Institute. For all I know, he'd probably like the routes their children take to and from school, as well.
It's really quite bizarre.
Straw man alert! I'm not scratch, but I can reasonably guess that he's not interested in debating whether or not the horse existed in ancient Mesoamerica because he (like the vast majority of legitimate Mesoamerican scholars) realizes this isn't even a debatable issue - there is zero evidence of the horse in ancient Mesoamerica during the Book of Mormon time period. But I think he IS interested in the horse issue in that it represents something else - the willingness of some apologists to allow fallacious information to stand, despite, at times, even knowing the information is fallacious having been alerted by others.