I missed the word "teaser." The weirdness is really the messaging moreso than the lack of in-game footage. "No, seriously you guys, we're going to make it. I swear" seems like a weird way to hype people up.
All anyone has talked about for the last like 6 months on the NCAA game reddit is that it's not happening because they didn't announce it or drop any commercials or marketing at the beginning of the season/halfway through the season/during the conference championship games/during the title/during the Super Bowl...
Yes, it's dumb, but it's dominated the conversation surrounding the game, and the goal posts constantly shift on "well if they haven't announced it by X, it isn't happening"