Not false advertising. Just different discounts that people don't understand.
When we booked out upcoming trip, I initially booked two trips as we were still deciding where to stay:
AoA with the free dining plan (we would pay to upgrade to regular)
BLT with a room discount
The room discount for AoA was small since it's a value resort, so the free dining plan for 5 people (4 Disney adults) was worth more to us.
BLT? We snagged an amazing room discount ($350+ a night), so that made more sense for us- even though the pricing vs dining wasn't *worth* it, we typically eat less food than the dining plan includes so the savings equalled out once you factored in the upgrade and tips etc.
But, it was close...
If we had been willing to pile all 5 of us into a moderate room? Free dining definitely would have worked in our favor.