I am not saying that this is, in fact, would not be considered. I am just saying that there is built within the petition laws certain circumstances where a petition can be denied.
I think it will be accepted but that is as far as it is going to go. The ECHR has already ruled in the France case that a nation cannot charge tax.
There could be petitions made with a number of other religions and groups. Catholic parishes and religious organizations would have to be charged because they deny communion to people who support abortion. Jewish institutions would be denied because they require women to receive both a civil divorce but also a Get in order to divorce. If it is part of religions strongly held belief it is hard for western governments to do anything that would coerce them into changing their belief system.