You keep saying "it doesn't hurt anyone". But, I'm wracking my brain trying to figure out who this mod would help? Like, what kind of person is so put out by this that they would seek outside help to have it removed? It's very difficult to imagine a version of this that doesn't involve some pretty hurtful stuff.
Nexusmods is very clear that they will not platform mods that promote any sort of hatred. You may say this doesn't do that, but I think it's pretty clear that this would do nothing except foster hateful discussion. It's a harmless disclaimer that can already be disabled without a mod. The only reason to host a mod for this is to promote the idea that it's wrong and encourage the types of people that think that to do what they always do, be hateful. It's inevitable, and it breaks Nexusmods ToS pretty obviously.
On the topic of making them "look weak": I think it's very clear that if you're the type of person that wants this content, then they do not care about your opinion and do not want you to use their platform.
I mean, who was searching for that before the game released? I imagine you'd see the same trend with basically every game immediately following release. Not to downplay the issues the game has having, but this is like a "duh" kind of thing.