I grew up in rural Jamaica, where there was no fast food, but I came to the capital city (Kingston) twice per month, where we would always eat at KFC. So I'd never had a burger before (KFC dominates every fast food chain in Jamaica).
When I was maybe 12 or 13, we had a class trip to Kingston, and after the outing, we went to a McDonalds.
So I'm standing in the line, and looking at the ad suspended from the ceiling. I wondered "how in the world could someone eat something so big!" I decided to order it anyway. You only live once.
Imagine my disappointment when the tiny box came back with an even tinier burger. I felt cheated, almost to the point of anger.
Anecdotes aside, this is genius marketing by McDonald. No PR-speak, no cover-up, but rather: "Are the burgers in the ad different from the store? Sure!!! Come on in, let me show you everything. See, we do A, B, and C and that gives us D!" That deflates any possible anger and makes it look like they have nothing to hide.
She deserves a raise.