Yes, except for the visual paradigms thing, and the "as relevant in this context" bit; the WWW was text only for years, except in the sense that you could use it to download files of any type. And he wasn't doing it for profit. But he was doing it on a network that allowed that kind of decentralized extensibility, unlike CompuServe, Minitel, Tymnet, AOL, Facebook, or AT&T.

An interesting feature of capitalism that Marx liked to talk about a lot is that they can be unstable, like democracies: participants in a free market are free to pursue their own profits, but by far the most profitable situation for them is to become a monopoly or monopsony, which destroys the freedom of the market and ends capitalism. So we have this interesting situation where the internet, arising from government planning and with commercial use prohibited for decades, ended up being freer even for commercial use than the alternatives established by for-profit companies like CompuServe, Tymnet, and AT&T.

(In the same way, a politician in a democracy is free to pursue power by getting elected, but if they are sufficiently successful at pursuing power, they end democracy.)