Carrion
Arcane
I do agree that there are some unfair fights in the demo (at least the ones where the game doesn't let you position yourself properly without a good reason), but that first assassin fight is a good example of a "level 1" encounter done right. I mean, you're straight out of the chargen and immediately face an experienced mercenary. The game makes it pefectly clear that your opponent looks tough and may be too much for you. If you still choose to attack him despite having the opportunity to avoid it, chances are that you'll get slaughtered, which is a perfect introduction to the ruthless world of AoD.Take the assassin vignette (and this is a good example as the "assassin" choice is one of the most enticing of all the options in chargen). Back when I first ran the game I started out with the preset stats, spread my SP along dagger, crit strike, dodge and sneak - sounds reasonable for an assasin to develop these. Now, at that inn I tried persuading the bodyguard to just leave, failed. Had the option to leave just with the parchment but hey "this guy is just a local brawler and I'm a trained assassin", I thought, "besides, this is the first fight in the game, right?". And then I saw the "you're fucked" message.
The first few challenges before the player should be relatively easy to overcome as long as he doesn't do anything really stupid. Pretty sure I didn't when starting out with the assassin, just that odds were way too even (or even seemed in favour of the other guy if I chose the 'throw crossbow' option and failed). I netted the guy, used aimed attacks and stuff like that and finally emerged victorious yet it still seemed that if the rolls would favour me less I'd be pretty much dead even though I used quite a few of the resources at my PCs disposal.
On the other hand you get Feng's quest right afterwards where you can choose to kill a weak loremaster. That fight is pretty much a walk in the park. During the first 5-10 minutes the game already teaches you the importance of choosing the right fights and staying out of the wrong ones. A false sense of power resulting from easy first encounters would almost certainly get you in trouble afterwards even in the demo.