Apples and oranges. The board can set neutral rules as to the scope of the benediction. They can ban dancing, animal sacrifice, lighting things on fire etc. They cannot, however, ban the Santeria priest.
This is not a case of equals but a matter of using an absurd notion, "wicca" is a legitimate religion.
In every meaningful way, our society and government have decided that Wicca is a legitimate religion, on par with Christianity. The IRS recognizes the religion. The military has Wiccan chaplains. Wiccans can be buried in Arlington National Cemetary in a Wiccan ceremony.
It should be treated the same way as the surf and turn religion and the santaria religion. No invite.
Basically, your argument boils down to you not liking Wicca. Well, that's all well and good, but the 1st Amendment was created to prevent the majority from discriminating against minority or unpopular religions.
my arguement are based on past supreme court decisions (specifically the surf and turf religion case) where accomodation is limited.
She is free to dow what she wants, she is just not free to impose it upon others. It is not a question of unpopular, it is a question of common sense.