Your post title made me laugh!
The promo is definitely not free dining, but it actually is a decent discount for 3 or more in a value room. People often tout the benefits of a 30% room only discount, but typically, that means only 15-20% off a value room, which may not even equal one full QS meal per ROOM, much less per person. It's no great shakes, but in summer when discounts are sparse to begin with, it's still a little something! I doubt it would make me book a trip I hadn't even planned on, but it would be a nice savings on an already-planned trip. I'd definitely do a free QS dinner, eat my TS meals at cheaper lunch times, and save a few bucks in the process.