I'm kind of shocked this game doesn't have more bad ends, there's tons of content in this game that could easily have one but some how they don't.
Like for instance the Corrupted Lupine's could easily be a bad ending if you get your ass kicked enough like the centaurs, same goes for the cultists in the Glacial Rift and so on and so fourth.
On top of that there seems to be a lack of defeated content for your party as of late. You might get a small line or two about your 'companion' being dragged away or just knocked out while you get destroyed by the enemy. See the different things that could happen to different members when defeated or even in a bad ending was nice, specially with the centaurs who block the path to the mountains.
The only person who tends to get that sort of treatment is Cait with special events and such.