Yes, I just checked again (~ 21:25), they claim to place one stone every 20 s which is supposedly three times faster than the ancient egyptians did. However, they did not place one stone at a time, but several at different positions.
Estimated for 20 year construction time: 2.6 million stones/(20 y × 365 d/y × 12 h/d) = 30 stones/h