That's correct. But it's correct in the sense of "technically correct". It's a language-lawyer type of correct that nobody actually expects when communicating in plain English.
Yes, they're not lying to me. They're simply being intentionally and willfully misleading.
When I was 8 and my parents asked, "Have you brushed your teeth?" to which I responded, "Yes." What they're really asking is, "Did you brush _all_ of your teeth?" and not, "Did you brush at least two of your teeth?" I answered that latter question. And I thought I was the smartest person in the world when I did.