I find this sort of ultra deterministic take on things renders articles like these pointless. I mean, what are we supposed to do now, 'choose' to expose ourselves to different information? Isn't too late, in a way before we were ever born kind of way? Wouldn't our "underestimating" be an imperative beyond reproach. Not to mention that free-will is not a factor in our being influenced by information. This is true in both cases, free-will and not.
Personally, I'm a non-compatibilist but believe the jury is still out on determinism. Despite having lots of evidence in support of it, I think there is still a lot of room for conformation bias, simply because the scope of such claims is so large. Overall, it takes a lot of hubris to make the claims stated in this article.
Also as a sort of pseudo-biological question: What would be the purpose be of evolving an illusion of free-will?