Downgrading should be possible on steam via steam console commands. I noticed large collections on Nexus usually tell you to use some sort of downgrader program but I’ve always just used the steam console instead and been fine.

Why would they do that. No they didn’t. They wanted to push something official because of the show and generally don’t bother not breaking mods with updates.

Its… A free mod. But if you are one of the 8 people that doesn’t already own a copy of Fallout 4, go ahead and pirate it, they’ve made their money.