Agreed. And the article goes in great detail of why a non-ballistic hypersonic projectile is so difficult to stop -- everything is going at extreme speeds and there's little to no time to maneuver, so if it deviates from the predicted trajectory you cannot intercept it at all.

Why ignore all of the article? If a hypersonic missile can be intercepted by a Patriot, then it stands to reason it wasn't truly maneuverable, i.e. it was ballistic!