Althuna I would think, if the PC underwent some kinda of Atonement quest.
Even if a deity doesn't like you, doesn't mean you can't worship them. Divine light worships all as a whole, reguardless if Deity A, and B hate your guts, you can respect thier realm of authority and pay them their respects that positions holds. Aka Divine Light.
And its not like Gardalsh or however you spell is him is going to think any less of a Divine Light toon or Parah toon. Heck.. he might have a Sliver more care for the Parah.
I certainly would at least like to see the option for those wanting to drop thier current Diety, to be able to go Divine Light instead of only Parah. Going from worshipping just 1 Deity to worshipping them all as a whole makes total sense as a step a character may make.