The French Academy is looked down on as being conservative almost to the point of absurdity by just about every linguist I've read on the topic.
ETA: I just skimmed through the Wikipedia article on the topic, which gives this:
although most academicians are writers, one need not be a member of the literary profession to become a member. The Académie has included numerous politicians, lawyers, scientists, historians, philosophers, and senior Roman Catholic clergymen.
Not a linguist mentioned.
Currently there are a number of philosophers and one philologist, but it's primarily composed of writers. 'Linguist' isn't necessarily a designation every student of language would take.
Linguist Arnold Zwicky has named three linguistic 'illusions' which seem relevant to cognitive bias. They are:
Zwicky talks about them here, and in not so many words links them to the standard bias of selective perception.
As an example, here is an exerpt via Jerz's Literacy Weblog (originally via David Crystal), regarding text messages:
It is my conjecture that these illusions are notable in areas other than linguistics. For example, history is rife with allusions that the younger generation is corrupt, and such speakers are not merely referring to their use of language. Could this be the adolescent illusion in action?
So, are these notable biases to watch out for, or are they merely obvious instances of standard biases?