They’re usually just liars acting as a filter between the game and the interested customers.

Instead of just showing the game, they cut what doesn’t look good and make it appear as something more than it is. That’s their job.

It’s not adding value. Peak marketing executed perfectly is just misleading enough to increase sales beyond what just seeing the game would do, without making the customers mad enough to have a negative impact.

I make a rare exception for actual artistry, like some of the WoW expansion cinematics. It’s still pretty misleading, but they’re pretty.

As for the next Elder Scrolls, I don’t think Bethesda has the devs to make it fun or interesting. From what I’ve seen from them, they are not particularly competent.