I would argue that internet makes good resources even harder to find - there is so much of everything, with no curation, that any resource's chance of gaining long term recognition is practically zilch.
For myself (not a mathematician) I would find hard to argue that in 1920 would have been easier to have access to this specific information. I was sitting in my sofa when I found this.
Also, it should be easy to ask people attending school now if they would prefer books to internet. And to me if the justification is that youth doesn’t know what they are talking about is like denying progress.
