The level layouts are different, but nevertheless I did see more flaws than that.
-It seems they didn't take advantage of pre-jump boosting as much as they could have.
-Although I'd have to test it myself to be sure, I was uneasy about some of their decisions on which branches to land on and jump from.
-Again I'd have to test it, but I was unsure about their strategy for passing the enemies at the bottom of the pit in Fillmore Act 2
-They didn't always jump to meet the Minotaur, which is generally faster when done right.
-They might've been able to go through the water area in Bloodpool Act 2 faster by taking some hits.
-Sometimes they jumped with their back to the enemy when they could've just turned around while walking, which is generally faster.
Blah,blah,blah. But overall, though, it wasn't too bad, and I'll be comparing my levels with the TAS as I go in case they have better strategies for certain sections. How often I can do that will be limited by different level layouts, different monster HP and God's maxed out HP but nevertheless I may find some timesavers.
For the curious, the same person who uploaded the SP Mode TAS also uploaded a no damage version which I put on Megaupload:
http://www.megaupload.com/?d=4LKC8XO1