I'm A Banana
Potassium-Rich
Who's exaggerating? I'm perfectly serious. They might not always be off to a huge extent(most monsters are not as absurd as, for example, the Banelar, or the Drowned), but they are incorrect more often than not.
Well, then you are exaggerating, since they're clearly not "picked out of a hat." They're not arbitrary if they're not absurdly off.
This means there's a process behind deciding what they are. Perhaps a flawed process, perhaps an inaccurate process, but a logical process nonetheless. And perhaps, if they're not absurdly off, they make a good guideline, but a poor absolute rule?
If you'd like to discuss the merits and precieved flaws of such a system, that could be productive. But if you're just bent on soapboxing...it'll be less so.