Understandably, some fans might not want to email a random gmail address or provide their email to a stranger. So this form exists to allow users to enter their choices without having to provide an email.
It does open up the possibility of spamming/ballot stuffing but (a.) I trust you guys, and (b.) I’ll be using my discretion if the choices received through the form seem suspicious. (Multiple identical (or semi-identical) ballots in a short space of time.)