Sure thing! News agencies could really do a better job when reporting on historical issues. This is no exception. What they're saying is plausible but it's not the sort of thing you'd expect a news outlet to casually throw around without sources. "Plausible, but unproven" shouldn't be the reporting standard. That's how false reporting gets in. For all I know (as I mentioned above, dance, and art history in general, is hardly my thing) this could be one such case, too.