Um... haven't you guys ever seen an advertisement? Toothpaste adds and so bright teeth that can light up a stadium , one drop of dish soap and an entire pot of grease magically disappears, red bull that gives you wings...Cause you know that's what a game trailer is. It has to be exaggerated to draw your attention. That's how marketing works. Ok or not, that's how it is being done since advertising became a thing. For sims sake even in Mobile casual game ads they show you a finger clicking on massive clusters of same colored tiles that give you awesome boosters and make captivating sounds and then you download the game and the bigger cluster appears on level 1-10 and is no bigger than 10 tiles. And you get 1-2 boosters. If you want more you have to buy them. And don't get me started on action mobile games...were they even fake the graphics in the ad ...
Also I remember that in TS3 the number of sims that appeared per lot had to do with your hardware. I don't know if that's still the case...So maybe you want them to show you gameplay on the lowest end machine with lousy graphics , where no more that 1-2 random sims appear.. I'm pretty sure that would draw so much of your attention to buy the game, and if you did, and you had a better computer, and you suddenly find your self in front of cool graphics and a bunch of sims, wouldn't that be false advertising?
Guys c'mon some common sense , please