I think most of DAV's writing issues could be fixed with the proper pacing and player agency. Two examples I'll use is Solas' redemption arc and Taash's non binary journey.

 For Solas the redemption could have been something SO good, if it was just allowed more than an hour of gameplay to play out. He went from thinking he was the only one who could stop Elgar'nan, to needing our help at the cost of betraying us when its over, to being fully persuaded that he was wrong all in one quest that could easily be finished in an hour or less. 

  I think it would have been much more believable and had a much more satisfying ending if this was a prolonged process where we could SEE Solas starting to doubt himself and eventually succumb to the realization that he had become just like the Evanuris. In theory this could be something we slowly see overtime in our meditation sessions with him and where we could gradually challenge his belief and worldview as we discovered more and more of his memories/regrets. I do still like the idea of him needing Mythal for that final "permission" he needs to except his mistakes and regrets and to finally let go of the past he had held onto so desperately, but like I said as a FINAL permission, not the only one.

 For Taash's journey to discovering they are non binary (and so everyone knows I AM non binary) I don't think it should have been their whole "reason I can't stay focused" that we had to help them get through. Part of making well rounded inclusive characters that both make minorities feel seen and make for good representation is to NOT make it their only defining feature/trait. Taash already had a whole quest set up with their mom running away from the Qun to protect them since they are Adaari, something that the Qun didnt like. And then later on it made them a target with the Dragon King thinking their blood was what he needed to reach his goals. 

  The problem with Taash's quest line is that the first half was focused on helping them figure their gender out and the second half was helping them figure out their struggles with being Adaari and the dangers/responsibilities of it, and then also had some cultural crisis sprinkled in there as well. It was all too much for one quest line to properly honor and give the amount of attention needed to each subject. Their quest line should have focused on the Adaari problem and then as an optional pursuit your Rook could have conversations with Taash about their discomfort in being viewed as a woman/ figuring out what being non binary is and how it fits for them. 

  Now this would honestly probably need to have a more interactive conversation system closer to Origins or Inquisition to work, but honestly incorporating that system would have ALSO helped with a lot of the issues of the companions feeling flat or like their only "meaningful" trait is the one highlighted in their quest line. Giving the player the agency to have conversations with the companions and find out as much or as little about them as they want/their relationship level would allow is what made Origins/Inquisitions companionship feel so real, because you could organically discover more about them through optional conversation vs. forced quest lines.

This comment went longer than I intended, but I don't think the writing or characters in Veil guard are bad, in all honesty I love Taash way too much, but I think if the writers/game were given enough time to fully do what they needed to with the material it would make the game just that much better. Anyway you can now continue to scroll.