Erm, well, even a turn, really. To someone who knows nothing about the game, that's the only glimpse they got. There's a lot that wasn't shown.
No magic
No turns
No control at all
No strategy (hence the rpg comments)
Now your comment highlights the difference between what we know, and what they saw in that battle. That's a quick battle, but there are strategy games out there where you walk up with a unit, attack, and one loses. Nothin' else. That's what they saw.
Now, I'll admit, that I'm strongly on the "other side." While I care about my units, if I had my wish, we'd have the big armies back. I don't really want squad level combat, and the move toward this has been kinda disheartening (I've talked about that elsewhere, so ... well, no point in that here). If I'm the king, I care about my army, but I don't have to know each soldier by name. I'm a king, I know my commanders, and I trust them. But if an individual soldier tried to talk to me? Off with his head!
I feel the game has lost this feel with the move away from continuous turns and the focus on individual units. This moves the game more toward a Civilization style combat system which I was hoping the game would move away from. To me, the shoe doesn't fit. I feel the game can and should be more than a fantasy Civilization game.
However, my point was that to people who are uninitiated to the game, they didn't see any more depth than an attack/defense rating, which would have most people climbing up a pole shouting "booooring". And, from what I understand, there is more depth. Now that I know the video wasn't intended to even be released, it makes a bit more sense.
(sorry for rambling, and I apologize for sounding whine-y. I develop games as a hobby, so I understand the decisions that have to be made, and you really can't make a game for everyone. )