Facebook is facebook. It’s social and private. As a user all I can say is that I actively down-vote, block and kill any content that makes it to my feed that is in any shape or form sponsored, social or ‘Share this or 100 bunnies will die’.
Any algorithm changes by Facebook that pushes commercial content further away from me is a win. Painful for you, but not my problem. My feed comes first.
And if you thought to invest thousands of dollars in hopes of attracting views which didn’t transpire… Well, not quite facebooks fault. Should have gone somewhere else. Access to eyeballs is a privilege, don’t assume it for granted.