I agree with you (expansions being set up at the same time and population count staying even after several battles). Also, watching this live was very entertaining Congratulations to both players.
I agree, that double-immortal drop from the Warp Prism in the early middle-game to break the siege tank contain was such a pimp move. This game amazed me because of how incredibly close it was the entire way through. They both expand at the exact same moments, they both have almost identical army food for the majority of the contest. This is a perfect replay for the HoF in my opinion, as it shows PvT of the highest quality.