I'm like you in this regard, I have a hard time imagining what someone that finds easy or normal in a Bioware game challenging is actually doing during combat even after explanations given but i suppose its my multiple-year mmo raiding experience that kicks in and makes it easy for me to see what to do efficiently.
Actually getting some degree of challenge from the enemy also enhances the immersion level the story bits is giving me due to enemies simply not bending over, i suppose those of us that enjoy both sides of the game and think they enhance each other are in the minority though.
I also have multiple years of MMO raiding experience. I don't play Dragon Age the same way and have no desire to. Raiding has informed my play style in terms of awareness and adaptability. That said, I play these games for the story. One of the reasons I enjoy going back to old raids is for the enjoyment of roflstomping the entire zone and seeing the story elements I had to ignore, the beautiful scenery I zoomed by, listening to music I had on mute, and reading NPC dialog I skipped over because I was busy clicking on colored squares and healing, and nowadays wrangling my raid members together since I lead.
I'm not going to bother with DAI multi-player either. I have a game for dealing with people, and have no interest in it for Dragon Age.
To your second point, I do like the combat in Dragon Age and don't want it eliminated entirely. I would find the franchise boring without combat. But I also don't need it to be greatly challenging. I went to the Deep Roads, killed some darkspawn. That's what Grey Wardens do, isn't it? That kind of combat connection to the story is enough for me.
The only shooter series I've played is Bioshock, all three games and DLC. While I do enjoy shooting people in those games, the amazing amount of work the devs put into that environment, all of the tiny details that truly make it an unique series is what makes me go back and play it again. On easy.