I don't know. The more dialogue you present, the more gotcha moments that are there for the OCD crowd to tear apart.
You're presupposing that they couldn't write more dialogue without it being worthy of criticism. If they keep it tight (by which I mean well-executed, not breakneck) then there is no problem. Write good dialogue and people will enjoy it. And Orci/Kurtz are certainly capable of good dialogue. It's their plotting that is the weak spot.
Personally I'd rather a well-written movie that breathes a little more, but I understand that's not the way you usually make a blockbuster these days.