Alright, the mail finally delivered Dawn of the Seeker and I got around to watch it.
As expected, there were some crazy stunts in there, but fortunately they aren't as numerous, nigh-universally limited to the protagonist, and lastly both Dragon Age computer games had similar stuff already. I enjoyed the story well enough, even though it once again
made the templars look bad. The swordplay was pretty well done.
In terms of background information, I learned a few new things! Apparently, the Chantry clergy of Thedas has regional colour codes - Ferelden is orange, Kirkwall is red, Orlais is purple, ... Also, I now understand a little better why the templars were cracking down on the mages at the start of "Asunder".
What I liked in particular was the little snippet of lore at the beginning of the movie. Not only was this told and shown in the style of the computer games, it also explained better the relationship between mages and templars, clearly indicating that it has gradually transformed and degraded over the course of decades, if not centuries.
The final scene with Cassandra receiving that book
from the Divine was also a very nice connection to her scenes in Dragon Age 2, furthermore hinting at new challenges and new tasks for her as well as the entirety of Thedas to overcome. I'd support a sequel - and/or Cassandra showing up in DA3.