I agree to an extent but there are only very few pages that I have added to an interest list... and i doubt many who aren't in the social media world like you and I even know what that is or how to do it.
There are some pages which have actively asked their audience to add them to an interest list/ get notifications for every post, which is a good strategy. Laura Roeder of LKR social media for example has an arrow on her page's cover image pointing and asking for her audience to actively receive her updates, regardless of FB's algorithm. This is a great strategy and I bet a lot of other businesses wish they had been doing this, but like i said, I don't think most people have interest lists or have opted in to get every notification. Maybe I'm wrong and I would be interested to know just how many people opt in to get notifications.
I do think that there is value in continuing with a fb page without paying if people are regularly navigating to it because of ulterior reasons than seeing what you have in the newsfeed, such as going to a networking event and giving someone your business card then they look at your fb page, a person just read an artice you wrote and clicks on your company's fb page link, your company has an awesome newsletter and a recepient clicks on your fb link, etc. But that's a whole other story. As you know, there are many facets to content marketing.
When I said that the only way to reach your audience on fb is to pay, I was more referring to those with pages who have been relying on organic reach for their content to be seen. For those who are doing awesome newsletters/ emailers, going to or hosting events and just all around getting their name out there, and encouraging people to navigate to your facebook page, that's different.
It's known that fb's organic reach has been bad for a while but if you have 1000 likes and reach goes down to 1%, only 10 people will see that post organically in the newsfeed. Even if you have an awesome post that people would want to share, what if those 10 people ignore it? My point is that the organic reach pool is getting smaller.
Ps. I would like to know how many people use the interest list feature. I made a survey so anyone reading who is interested, please take it! >>
Survey: Do You Use Either of Facebook's Features: "Get Notifications" or "Interest List"?