I also couldn't command the gnoll leader to eat themselves. That dialogue tree didn't pop for me at all when interacting with them. Maybe origin characters are locked out of certain things? Gonna try again on another origin to see.
This option was available to me when playing on SH, so it was prolly just a glitch for Astarion.
The night of the tiefling party, I didn't get a single invite for anyone's "camp romance" scene.
Got several invites playing as SH, so another glitch with my Astarion origin run.
Guess I could always play AS Wyll and romance Astarion to see that, but was sad I couldn't do it as Astarion. Actually, not even sure it'll be an option. Gonna do a SH origin and romance him to see if origins are just locked out from that possibility. I'll update this once I know.)
Was able to become a spawn as SH. No new dialogue, same as becoming a spawn as Tav. So not being able to create a spawn while playing Astarion makes me even sadder.