I am also not an attorney. But here is the rough explanation I have gathered over the years on the topic. The issue is not so much about the term "Super Bowl" and it never being uttered by any soul under any circumstance. The issue is more about brand confusion and/or trademark dilution. If Budweiser spends a billion dollars on various Super Bowl promotions, it would be a problem for Brand X Beer to create a promotion called the "Brand X Beer Super Bowl Giveaway", basically creating a link to the Super Bowl without spending a dime via the "proper" avenues.
Using the Super Bowl name to promote a business, like "it's the Super Bowl Furniture Sale at Sofas R Us" becomes an issue since the Super Bowl franchise would not be able to maintain quality control over what their name is linked to. Trademark dilution. The goal is for the brand to represent a high quality sporting event and supporting products, not some crappy furniture at a mom and pop furniture store.
But you are right, secondchoice, the Super Bowl is an event. If you have tickets to give away to it, then there is really no two ways about it, you have "Super Bowl tickets". On the air, there is nothing wrong with saying... "who do you like for the Super Bowl" or "the Super Bowl is coming soon". For a giveaway, if there are sponsors involved, it get tricky pretty fast. Manufacturing an implied partnership between the Super Bowl franchise and some unrelated business could quickly draw the attention of the team of attorneys with the job of protecting the brand.