Fun fact: there's multiple versions of the 10 Commandments in the Bible.
... people who are biblical literalists are a tiny, tiny minority. "The Book" is full of contradictions, updates, and in the first place, its content depend on what you accept as being part of it and what not, and even then, on how you translate it, and what you then take from the allegorical bits.
How many know that at times stories where Jesus went after dragons was part of the cannon at some point?
To bring some relevancy to this thread: people aren't machines. It's entirely possible to hold contradictory convictions - I think the death penalty is a travesty and shouldn't exist. I also think someone should shove an explosive drone up Putin's arse.
In the same way, there's no point moralizing about mangadex banning one form of content and not another. Yes, it's hypocritical. But it's run by people, and they can view things in more ways than just "this is all black, and that's all white". They can absolutely draw a wobbly line around content and be all "well this is too much, for some reason, while that's okay, even if it's technically quite similar"; for now fortunately nothing on here is enforced by AI algorithms so it's doable ^^
That of course does not excuse the reaction, how they went about it, and least of all does this mean it's definitely a good idea to do so. But those are different arguments.