Wich2 wrote:
As to your last, I think you have misread that section of the book.

-Craig
No. I quoted the portion of Gary's book that contains the error here. Here it is repeated: 

On page 178, Gary states that "...the key change with regard to these scenes is the number of onscreen visits that Dracula makes to Mina's bedroom. The final shooting script includes only one such visit, whereas the edited film shows two. While it is indeed possible that this change occurred during editing, there are two reasons to suspect this decision was made during the production phase." [Emphasis added.]

Perhaps you misread that portion of the book.