Seconded, I've tried posting videos here before. His explanation of the great pyramid being a public/private devotion place, not a secret grave, makes the most sense to me. It would be like Lenin's Mausoleum. Everyone knows where its at, who is there, and you can go see him and leave offerings.
Previous tombs were robbed and looted because the king was buried and forgotten and no one cared anymore. Probably helped their followers maintain power after their death too.
(purposefully not using any names, I am skeptical on the official story of who built what for who)