This is a very problematic choice and as much as I want to think it wasn't malicious, at every turn it sure looks like it's meant to be inflammatory. I can think of exactly one good reason to mark religious content as NSFW (under F-Droid's bizarre and very not normal definition of that word): To protect persons living in areas of the world where association with that religion is ruinous or outright dangerous due to p…
The old testament has depiction of rape and violence. If the new testaments is also tagged nsfw though, I'll claim that their sensitivity is too high.
new testament scripture about killing women and children: https://www.google.com/search?q=new+testament+scripture+abou...
What was "Passion of the Christ" rated, and why?