I know its easy to say when you don't work on the production, but sometimes you are stuck with the one take. I don't like to criticize directors when I am not in their position and don't know the limitations they are forced to work under.
I work on a lot of TV shows in Asia, and it is often one take. I wish we could do more, but it's not my position to decide that. Because of this, sometimes mistakes get left in or it could have been better, but you have to live with it.