Under the hood it seems apparent to me that the real premise is an emotional one, not a technical one.
The internet is plastic not because of HTML, but because of money and people. When you have teens driving content it's going to feel plastic. When Walmart uses the internet to sell you crap it's gonna be plastic. Gossip / social platforms are trash, no matter the medium.
It could be argued that TV is an incredible learning platform ruined by HD. Back in the standard definition days we had proper news, documentaries that were substantial, and no reality TV. We need to go back to black and white standard definition.
Sorry, but the PDF web is not a solution to societal rot.