If it makes you feel better, I feel like both JoH/Descent are equally the Omega of DA:I. Neither add anything that couldn't have been in the main game. At least with Trespasser you can see them justifying the money grab post-release and the work they put into it, not to mention the major story contribution/confirmation that came with it. Where as with JoH/D you get nothing of significant value in any regard.
I'll agree with you as far as the Trespasser ending. The whole negating your possible reasoning for joining the Inquisition to start with was silly. All said though, all 3 of the DLCs should have been modified and delayed the game release and been included to start with. Trespasser should have been the original ending and the other two excuses for DLC should have been optional side quests. I feel bad for anyone that spent money on any of them.