Thats a good point, it seems like 90 some odd percent of popular mods across Bethesda games did require script extensions and frameworks modifications.

"What about"

What about anything? There's nothing to this article other than "yeah, this community involvement thing that we're doing, it's really great and we hope to do more of it." Not a single substantive word from this Microsoft spokesman regarding how they plan to navigate intellectual property rights or content policing for community-created content.

For all we know, the Fallout 4 creation kit could end up being a simple level editor, stripped of 90% of the functionality earlier CKs had, so that they don't have to pay teams of people to screen mods for content for extended periods of time.
That way, they can just say, hey, the CK doesn't let you add any third party meshes or textures, so all modders have to work with is the assets we included with the game. Bam, no need to bother checking to see if mods contain adult or copyrighted content.
You must remember, people are still playing and modding Skyrim, Fallout: New Vegas, even Fallout 3, to this day. Skyrim released in 2011. New Vegas, 2010. Fallout 3, 2008. I don't think MS, Sony, or Bethesda are going to want to pay a team of people to screen every mod that gets uploaded to Bethesda.net every day for the next 5+ years so that no adult or copyrighted content gets onto people's consoles.

I hope that I'm wrong, but I've got a bad feeling about this.