Yeah, I see what you're getting at, and I'd see way more solutions as well. Like I mentioned, a deal with Raphael would solidify Karlach's motivations to see the main plot through. But, there's also no reason she can't hang out with Hope, for instance. .
But if you let me pursue that goal all game long, only to realize that 'vicotry was never an option', I'd get even more frustrated with it.