"People who pay to use twitter are not the problem, that they believe there’s no viable alternative is."
I missed it myself when I skimmed his writeup the first time. There is no mention of Nostr specifically in the piece, but the final line "freedom tech provides us options" is actually a link that leads to a writeup explaining Nostr. (Not sure if you clicked it)
Looks to me like he's trying to be provocative enough to get peoples attention while actually trying to help lead them to a viable alternative exactly as you suggested.