Earlier quoted context omitted.
And yet the proliferation of screens capable of displaying information and graphics has been an absolute boon to education.
It is not clear to me that is the case. Has the proliferation of screens actually improved learning outcomes? It appears to me that e.g., HS graduate standards have been gradually lowered over time, particularly the further back you go. Maybe this is independent of the screens.
Unequivocally yes. Not every usage of a screen in education is beneficial.
But there are absolutely numerous use cases where being able to display graphics on a screen (or even better interactively) is a massive benefit. Think of any sort of science that's better shown with animation than just a static image on a page for example.