One goal of Fountain is that you could write an entire screenplay with it, and easily export and/or print something that a colleague could read and provide feedback. A simple title page with contact information is required for this. The title page, like the rest of Fountain, is designed to read well in raw text as well, giving one the proper sense of a screenplay.
Fountain is also designed to be a smart archival format for screenplays, and a title page is necessary for that.