That isn't immunity to frivolous DMCA notices or the ability to ignore DMCA notices.
By serving as an exit node, they are able to take it off premises.
> The amendment provides that any such copy in a digital format must not be otherwise distributed in that format and must not be available to the public outside the premises of the library or archives.
Yeah, that's a specific example they point out in the guidelines.
But there's another section that also applies to higher ed institutions which remits all damages and criminal charges if they prove they had no knowledge of it (actively) going on. That's the provision they'll probably hide under.
edit: I should clarify, most DMCA complaints are from third parties who get paid from the settlements. Eliminating the financial incentive to pursue legal action pretty much eliminates the threat of prosecution.
By serving as an exit node, they are able to take it off premises.
> The amendment provides that any such copy in a digital format must not be otherwise distributed in that format and must not be available to the public outside the premises of the library or archives.