Perry the character is indifferent to what should be done with the egg honestly. He cracks jokes about omelettes and whatnot but that's just him being Perry. On the other hand, Seath, the player, would have Booming Blade'd that egg on sight. But Perry is just a bard who wants to write a songbook and help out the team. He also feels bad for the King right now so he's letting him know about the grandegg. I didn't think it was a good idea to hide all the details of it from him, but I didn't want to bring up such a delicate topic in front of all the guards and whatnot either.