While you're technically correct, '2D' and '3D' just take less time to say than 'traditional hand-drawn animation' and 'computer generated imagery'. It's a simplification, but 2D and 3D is just the language people understand.
Well,we need to teach people what they're called instead of assuming they'll never learn;just calling it what noobies start out calling animation and settling for that.
I notice that you completely ignored my post where I explained to you that 3D CGI is 3D animation. Just like you completely ignored me when I pointed out that there's no real reason why cel animation should be called "traditional" when it was predated by stop motion the last time you brought this stuff up.