While Forgotten Realms is its own setting.. Clerics able to pick a subclass/kit opposite of their god's portfolio is definatly NOT Forgotten Realms. Healing spells are also only divine magic, wizards in FR cannot just learn any spell they want, healing is not a thing for them. (Bards are the exception with arcane healing spells, though. But the only real exception).
I think (Hope!) that wizards being able to learn any spell rather than just the ones meant for them/on their original spelllist is a bug that will get fixed.
