I agree with his general point that those notifications are just there to sell ads to page owners, not help the page owner.

That said, I don't think his allegation that the stats are fake is likely to be true. He names one stat that doesn't match up, but doesn't even say the time period he used. The notifications may be for post performance the last hour or something and he checked total post performance, for instance.

I think his post would have more weight if he just said these constant notifications trying to sell me ads are annoying and intrusive, not made up an unlikely story about fake stats.

"I don't know how it works and it's not working as I assumed, they must be lying"

Actually: "There's no reasonable metric that adds up and they aren't transparent about it, that's enough to write a click-bait headline."

Actually: "None of the 3 metrics over the one particular time period I checked adds up and they aren't transparent about it, that's enough to write a click-bait headline claiming they're lying."