Personally I'd not even use this argument for the reason that this also applies to Anakin in regards to Obi-Wan. They both knew each other intimately.
I believe that generally in that fight Obi-Wan was actually maneuvering where he wanted to go.
"In every exchange, Obi-Wan gave ground. It was his way."
"Obi-Wan let Anakin drive him toward it. It was a place, he decided, they should reach together."
There are other similar quotes in the novel. So I think where it may seem that Anakin is pushing forward because he's got Obi-Wan on his heels, I'd say that it was otherwise.
I would say that there was a similar instance with Obi-Wan in his fight with Anakin where he held back. Take for example this quote.