The advertising model has changed, but the food is still slop and the goal is still to draw in big families who can't afford to make dinner. What's changed over the last forty years has been the means by which people are incentivized to enter the building. You're no longer trying to bait children from the side of the road with a big van that says "Free Candy". Instead, you're focusing on bombarding kids with advertisements on YouTube streams and targeting parents with gamified repeat customer incentives. But they've also focused more on getting customers out the door than in, improving the speed and reducing the front-facing staff, such that customers are encouraged to get their food and leave rather than linger in kid-friendly private sector daycares.