My personal thoughts... if you find the combat boring, what are you doing playing a game with a lot of combat in it? Also, explain to me how the comb\at in DA: I, is inherently more of a chore than the vast majority of other games on the market, with combat in it? When you have shot an elite in the face for the 1000 time on the halo series, is that not just as repetitive and boring? When you have gravity pulled some dillberry of his feet in ME:2 for your allies to fill full of lead, for the 1000 time, is that NOT repetitive and boring? After you have done any number of things for the millionth time, is it not becoming repetitive? Lets go away from games a moment. Say you love a specific album and have owned that album for many years...after the millionth listen is it not repetitive?
I do not know if this is a SERIOUS suggestion, yet I hope it is not. I will say it again just to re-state it. If you find the combat in this game unbearable, then I suggest you don't play it, and maybe think about not playing any game with combat that gets repetitive. Although I feel that would probably close 95% of the gaming market to you.
Let me address your points one-by-one, then add some of my own thoughts:
The first and very ridiculous suggestion is: if you don't like an aspect of the game, then don't play it. There is so much wrong with this statement it's not even worth getting into, but to answer your question of "What are we doing playing a game with a lot of combat in it?": we would like to experience the story, see the characters interact, see the character developement, etc.
Now, the two games you mentioned are interesting because they have a very different combat system compared to the one used in DA: I, but I'll talk about them nonetheless. Both Halo and ME have very simple mechanics, but here's the key difference: they both require a certain amount of skill to use. Every (or almost every) fight in those games are a different encounter, because you have to adapt the mechanics to those situations: you have to aim, use your skills (that are much more situational in ME).
Now let's look at the combat system in DA: I. You can do two major things: auto-attack, and using your skills. Here's the problem with auto-attacing: there is no skill involved, you hold down a button and the game takes care of it for you. This wouldn't be a problem if the skills were done better though, but as it stands basicly every skill you have is a "use as soon as it's off CD". There is no thinking involved, you just mash buttons until your enemies die. This could be offset with the difficulty settings, but Nightmare doesn't really make the game harder, it just makes it more tedious: the enemies have more HP and do more damage. The result is longer fights that aren't any more rewarding than if you've done it on Casual. This is amplified by the constant respawning of enemies: even the small satisfaction of finishing a fight is taken away from you the next time you go through that area.
A better comparison would've been DA: O for example. A lot of people disliked the combat in DA: O and there's certainly good reasons for it. Even me who liked the combat it felt sluggish or imprecise at times (most of my compaints could be fixed with mods however). But here's what Origins did better: first you don't have to hold down a button to auto-attack. This seems such a minor detail, but small annoyances add up. Next we have more skills, and skills that are more situational than the ones in Inquisition. You would often have to think about what's the best thing to use in a certain situation (especially on higher difficulties). Also while the difficulty had the same kind of artificial difficulty aspect that Inquisition has, it never felt as though you were wasting your time: the fights were rewarding when you cranked the difficulty up.
Let's compare what it would take to make a program to play the game (or the combat portion of it) for you:
- In ME and the Halo games it cannot be done without in-game knowledge (you wouldn't know where to shoot).
- In Origins you could do it without in game knowledge on the lower difficulties, but only because they don't really require you to use skills effectively.
- In Inquisition for every basic fight (as in not a dragon, giant or boss) you can hold down the attack button, then try spamming your skills every few seconds. No in-game knowledge required, which is not the sign of a good combat system. (And for the record I actually wrote a small script to do what I just said, and it easily gets through regular fights on any difficulty)