The French are no strangers to gilding the lily, and I imagine that he translates things badly from his native tongue into English.
His English is quite good, but we might be getting more or less then what he intends us to understand.
On another note, I wouldn't be surprised if after all this we do get some sort of extended cut on top of additional scenes.
Think about it this way, they are trying to sell this film as is, if Letterier were to say at this point "Yes, once the DVD comes out the fans will get the version me and Norton wanted them to see" it would be counterproductive.
First of all it would refuel the gossip of the conflicts between them and Marvel, and it would make those wary of this movie less likely to go see it because people wouldn't want to go pay for an incomplete movie... So why not just save up for the DVD?