Yah, but look at how fast he changes his stance and which moves he makes in each stance.
Just his reaction is already impressive.
I don't see why you can't do it in 3.3x since he was doing it in 3.2x.
Unless the procs don't carry over when he changes stance.
The only problem you will have is with Stamina/HP. Newer PvE gear has more stam, the shield block gear he has are from Naxx with less Stam.