Not sure if the crypto community in general would be keen to donate to religions though, besides probably some people with the same faith.
Donations with crypto isn’t new for many people.
I have witnessed many people in order to remain anonymous have donated through Cryptos (basically Bitcoin).
I am unable to recall the proper incident, but some months back, i heard a news that some hackers hacked a crypto wallet that had large amounts of Bitcoins and stole all the coins.
Later from the stoled part, they donated some in some charity.
It was highlighted all over the social media few days back.
So yes coming to the OP, Donating with Bitcoins are already done and also been doing currently at many places and it’s not a great deal or issue in the current situation according to me.