No, nobody here said that. The cases given for where it might be appropriate were if you were exaggerating for humorous effect, or if you used the specific contrasting phrase “she’s not small, she’s minute” (in other words, she’s smaller than small).
If you want to focus on overall body size rather than only one aspect like height, weight, or mass, you could use words like “small,” “tiny,” or (for women) “petite.” But we don’t normally call people “minute.”
This extends beyond the usage of “minute” for describing people. “Minute” can definitely be used to describe genuinely tiny physical size, but otherwise, I think it’s significantly more common to use it for a small amount, extent, or degree of something.