No, not really, didn't make sense why you'd really dislike DA:O when it was a combo of BG and NWN. If you don't like NWN however I can see why you'd find DA:O boring.
Still doesn't really explain the story but in another thread you did say you like having as little of your character predefined for you, so that you can make your own origin (which in honesty is good, making your own character history is good). I myself like having context to why I'm in the situation i'm in, how it impacts me on a personal level (the character), running into old enemies other than the 'big faceless dumb monster' at the end and blah.. Loghain, Rendon Howe? Those were my enemies, I didn't have the big side boss villains to despise (Samson was a pathetic wretch, but he didn't wrong me personally, and Calphernia, I felt more sorry for than anything). It just felt like the last boss was not to my taste, in both character or combat.. But hey, that's only -me-
no more questions. obviously they aren't mandatory or anything. I just really didn't understand.
My main problem with the gameplay in Origins is just the speed (also the inventory, but that's bad in inquisition too!).
I explained my problem with NWN gameplay (possibly not the games fault), but it also had a awful plot, and no characters. So there was nothing there for me.
I don't really see much of a difference with not having a Origin. If you took the first hour of inquisition and titled it the "origin" of you character, it's exactly the same for me. An origin just showed you the starting event that defined how your character got involved in the plot and gave you a chance to roleplay some reactions to define your character.
Origins: I was a full-of-herself mage, who was tricked by her friend into trying to escape because she thought the templars couldn't touch her, and was conscripted to avoid capture/death.
Inquisition: I was full-of-herself Dalish mage, who was sent to the conclave as a spy, decided that picking up an ancient artifact of unknown power was a great idea, and got captured by humans.
Both told me my background, and gave me a chance to have a range of reactions to people. Both allowed me to define my character. So not much of a difference for me! 
My problem with Origins, is the same you have with Inquisition. I had no personal connection to the villain in Origins, no reason to care. The inquisition villain put a mark on my hand that was killing me, of course I cared about that! I agree that the side bosses weren't great though! Origins, I didn't have any enemies. Seeing Jowen again was nice, but she certainly didn't think of him as a enemy, just a bad friend.
Sorry, I think I snapped at you a bit for the questions.
I just didn't see the links between what you were asking, and thought they were random! My bad! Feel free to ask if you have more!