I have no love for what they're doing in the present, but at the same time the 'time capsule' they're creating is going to be an unimaginably valuable gift to the future, if it is not deleted. At some point we may even reach a point where you could feed the information into an AI with the goal of it producing simulations that would strongly resemble the times which could be used for teaching, education, and more. And what a key time now is as in one human lifetime we develop the internet, automation, likely become a multiplanetary species, and so much more. Funny coincidence we happen to live in this time...
It looks like this project uses this Internet Archive.
I agree that https://archive.org is one of the treasures of the internet. Up there with Wikipedia and Khan Academy.