So in the time it took for the Horde to kill a fat mage and a Draenei monk, on a section of the pyramid that was basically right outside the throne room, the Alliance somehow managed to kill Undead Grong, make their way into the temple and kill the treasure hoard elemental, navigate their way up the pyramid to the conclave, further up to the throne room to kill Rastakhan, and escape... Afterwhich the Horde finally managed to get inside and get their recap from the Zandalari guard to tell them all about what the Alliance just did.

They couldn't even pretend to give better pacing and have Grong encounter the Horde outside the Northern end of the city first?