As a user, that would certainly turn me off. The entire page being in canvas fundamentally breaks native functionality. Text selection, copy/paste, navigation

As a user, that would certainly turn me off. The entire page being in canvas fundamentally breaks native functionality. Text selection, copy/paste, navigation keys. Most of these could be simulated but it would never feel truly native. Heck, I get annoyed when on Snopes simply because I can't select any text (which I use to keep my place in the article).