Raphael 's visit triggers after your first attempt to remove the tadpole I believe.
The number of camp events have gone down since launch when it seemed like multiple flags would be tripped at once. I haven't had the tadpole conversation with Lae'zel in a while either, I think it's tadpole use gated.
If you haven't seen the Astarion scene that one is pretty difficult to miss, unless you know what to avoid, there's two or three places I've had the dead boar spawn.
