Now that I'm thinking about it, they are on the road and could easily eat a squirrel if they had to, so it isn't super out of place. It would feel less so if we randomly found squirrel meat from shops and searching. Maybe it was intended to be more funny that Astarion says it. You may have a point there about the foreshadowing.
I never got that with Wyll, but admittedly I'm only a few plays in.
I'm glad it's not just me.
