The person you quoted was talking about the combat mechanics being interesting. And he is talking about doing combat the right way given those mechanics. Then you reply talking about theoretical dps numbers and state that what is sayin is flat out false. Which is simply not true. Everybody who plays GW2 to any decent levels knows perfectly that standing still and spamming autoattack isn't viable and doesn't make any sense in any form of PvE or PvP. Theoretical numbers against a training dummy are simply irrelevant to what he was reasonably trying to say.
So, overall, if his statement is "flat out false", as you say, I don't even know how to define yours.
EDIT: Then again, on the more general topic, if you are seriously able to say that GW2 combat, with no limited mana/energy, casting while moving, dodge and casting without target is less dynamic than WoW combat, I politely think that you are hopeless. You may prefer WoW for many reasons, of course, but at this level there's really no competition.