This is correct. I used to work for an ad agency (now in a marketing/PR agency - similar world of business) and without a doubt 99.999999999% of game stations are PCs. Unless you see the console, then by default you should assume it's a computer.
I'm not condoning, or condemning any actions; but this is the reality. Of recent note, late last year and before release date, Sony showed off the PS4 in several comic conventions. You could wait in line and try the controller and play a demo. But what most people don't know is that they didn't have any working consoles (with a working OS); it was a big fat computer (which I assume is a sort of dev kit).
source: my eyes.
The industry has been doing this since its inception. Its the video equivalent of "bullshots." I just tossed away my PS2 era Official Playstation Magazines, but not before I quickly scanned through them - and there was a 4 page spread of the original Devil May Cry. I swear to God Almighty those screenshots were better than the HD version of the game. And don't forget stuff like this:
Now, I'd argue that FROM didn't screw up, plus they're most likely not allowed to talk to consumers (that's what PR is for), and instead the marketers for this game aggressively showed off the PC version to win over some purchases. Lying? Sure. Have you seen what a big mac looks like in the ads?
Don't get me wrong, I'm kinda miffed my copy of the game doesn't look like that, but I'm still realistic and would agree with most reasons why the final game doesn't look as advertised.
But that's the thing. The final game DOES look good. The draw distance, the cloth, the open(ish) world, and the ambient lighting is cohesive (though not as stark as some of the old previews).
And what's most important, the game plays like a dream. I absolutely love it, and am excited to find all the secrets it has in store.