My gosh, you’re right. They always say “In my professional medical opinion” or “within a reasonable degree of medical certainty”…I always found it reasonable wording because we’re indeed a litigious society and nobody can be 100% certain…

… But is a major function of that paradigm just to allow the likes of insurance companies or random senators to say “That’s just like, your opinion, man” at them? :|

(Effectively: "The Lebowski Shutdown " maneuver)