Because they don’t actually worship satan, rather exist solely to highlight religious (especially christian, given them being US-based) hypocrisy. The name choice and theming around satanic symbols was probably done more to symbolize going against the reality of christianity than anything to do with christian myths about satan, as well as to specifically piss off those christians that go on about religious freedom but are against the satanic temple getting the same freedoms as the christian church.
Because they don’t actually worship satan, rather exist solely to highlight religious (especially christian, given them being US-based) hypocrisy. The name choice and theming around satanic symbols was probably done more to symbolize going against the reality of christianity than anything to do with christian myths about satan, as well as to specifically piss off those christians that go on about religious freedom but are against the satanic temple getting the same freedoms as the christian church.
It relates to the myth of Satan in at least one way - he rebelled against god.
Lol the name choice was just to piss off conservatives. Nothing at all to do with Satan