I'm a former (medically retired?) attorney, and in law school we learned to write in different ways, for different audiences. In court the purpose is to persuade, whereas internal discussion of a case in a law firm would be focused on objectively informing co-workers about the strengths and weaknesses of a case, and the likelihood of its success.I don't doubt that this sort of mental chicanery is common practice among those trying to wriggle past the justice system (and Professors of Law will be pretty wise to that).
The purpose of scientific research papers should always be to inform. Yet the BPS papers are typically focused on persuasion. The "facts" are collected and repeatedly presented in a form which is used to support their case, rather in the manner which is most informative. Instead of showing how the laws and principles of biology or psychology support their outcome, they focus on the philosophy of why their desired outcome should be the best one.
I doubt any of these researchers have ever engaged in science, or even understand what it is. They're a bunch of bullshit artists arguing a meritless case, and they're relying on personality, theatrics, and systemic cronyism to pull it off.