The HN demographic can follow that but many normies can't because Facebook provides functionality for sharing that can't be replicated by email mailing lists / RSS readers / Mastodon / vBulletin, phpBB boards, etc.
E.g. my friend sees a Youtuber doing some interesting sewing projects to make clothes. To facilitate discussion and collaboration with viewers (sharing photos, videos of projects), the Youtuber created a Facebook group. That's what non-techies do to empower themselves.
Similar situation with normal people using Facebook to share calendars for kids baseball games etc where multiple families can see the same canonical list of upcoming scheduled events.
So the article's recommendations for minimizing data collection can help those people who use Facebook in ways that enhances their lives.
For the folks that only use Facebook to doomscroll an algorithmic newsfeed (a glorified "RSS reader"), that's the type of user that can "just stop using Facebook".
I keep a dummy Facebook account with no followers and nofriends just to access stuff that's exclusively on Facebook. E.g. when I was looking for a tree service to remove some storm damaged trees, it so happened that every tree company I was interested in only used Facebook for up-to-date info. The ones that had their own websites were not maintained and had out of date information. On the other hand, their Facebook pages had the most recent photos of their equipment and their correct phone number. My guess is updating their "real website" requires calling and paying for a web design service to edit things whereas their Facebook page can be updated from the business owner's smartphone for $0.
Because of non-activity on my dummy Facebook account, I worry that Meta will someday flag it as a bot and revoke access.