:') He appears to be saying that using the finite speed of a wave as the basis for a claim that time has a variant speed is, uh, goofed up. I don't like his political remarks, but regarding relativity, I've said the same thing about what is, at its heart, the most profound optical illusion. :') Now I'm going upstairs to change into my asbestos suit.
No flame, but Special Relativity has been experimentally verified.