re: Crackpot ASOIAF Theories SPOILERS

I too question the decision to give POV's to throw away characters at times. I try to find justification for it. For example with Aerys, it seems throughout the series GRRM has touched on the oath of the kingsguard and the night's watch and shown how many who have taken those oaths have broken it. Maybe he was just trying to show the conflict that some face when doing so. I feel like I'm reaching here but it's really the only reason I can see for not doing this from Arianne's persepctive, but honestly you could have accomplished this from her pov also.