A family of Microsoft word processing software products for creating web, email, and print documents.
The only explanation that I know of is that the change is a result of the new layout engine in Word 2013; see previous replies. What you can do is post a suggestion to change Draft view back to it what it once was. Go to https://word.uservoice.com/.
In the meantime, you could try using Print Layout view with the so-called white space hidden. It will display pages without headers and footers, which obviously isn't the same as Draft view, but it is a simplified view of the page at least.