Because the last 20 years has been an arms race of who can be the most pedantic about whether you have 4 fingers and a thumb or 5 fingers and about how many legs does a dog have if you call a tail a leg and "It's not Champagne, It's Sparking Wine" and so forth and such on and etc.
If we can never be clear/precise enough to appease the pedants with our categorization, we just shouldn't use them. Just refer directly to the context/meaning and cut their ability to stall and troll out from under them.
You've played the game as long as I have. You know damn well no matter how well you word it, how precise you are if you say "X is Y therefore Z" someone, someone will within a metaphysical certainty stop the conversation to argue about with X is Y even if they don't disagree with the core "X therefore Z" argument being made.
You know as well as I do that the world is full of people who, if you walk up to them asking for help because you're dying because a poisonous snake just bit you, will argue that no that's not possible because poisonous means its toxic if you eat, what you really mean is you were bitten by a venomous snake and now it's too late because you're already dead.
So if "X is category Y therefore conclusion Z" will always attract the pedants, just drop it and phrase it as "X therefore conclusion Z." It's the same meaning it just skips over the part that always triggers that subset of humanity that is incapable of not spotting a technicality but totally incapable of realizing it doesn't matter and nobody cares.