Don't expect people to keep coming back to your website/blog just to check if there is new content/news. If it doesn't provide a feed (Atom or RSS), the most probable scenario is that I will not remember to comeback any time soon.
That's why RSS is dying. It doesn't facilitate in-depth surveillance or algorithmic timelines designed to be addictive... err I mean "maximize engagement." RSS is a user-friendly technology not an advertiser-friendly or surveillance-friendly technology and surveillance driven advertising is the business model of the Internet.
It's a little ironic to me, then, that this concern is being posted on Twitter of all places.
I agree with the concern, I think RSS (or something closely related, like a decentralized version) should be maintained as a communication method, but I think there's a usability issue that's driving it.