I understand this concern, and it's a valid one with pretty good points. I've been using Notion for almost two years, and I'm using some redundancy.
This is a problem, like she says, any distribution platform that's not your own has.
My mitigation for that is that you guys can duplicate the Cookbook to your own Notion profile and handle your data however you like. So Notion becomes just for distribution, not storage.
For instance, by duplicating you can export the content as HTML packages and store it elsewhere.























