Oh they were! But people wanted Solas continued in each DLC and got upset when it was pre/post-game content. As each DLC came out and people complained, they just smirked in the shadows. 
I'm one of those people who were very upset because, IMHO, the two previous DLC had little or nothing to offer. The truth is, I'm still very disappointed with the whole DAI thing. I've been a huge fan of the DA two previous games (yes, DAO and DA2), as with other Bioware games, like the ME series. I'm sure there were some people, like you, who found the 2 previous DLC's worth it their price. What can I say? Good for you. I didn't. I also found DAI main game incredibly boring and tedious to play through.
This is a nicely done trailer for a new DLC (as good as the DAI's trailers were that left me all hyped before launching). I sincerely hope the real thing will be everything you and many other people were expecting from it. I have already shelved my DAI and I wouldn't push myself to complete a playthrough just to play this post game DLC, no matter how good it could be. This time for me, is going to be just watching a lot of videos on youtube to get an idea and I will definitely keep an eye for when Bioware is about to launch some DA4 or whatever name it will be.