The iconic sugar maple leaves have 5 lobes, not 3. I am a Certified Naturalist with a specialty in native trees.
I think you are saying the same thing in a different manner. The other two lobes being the “legs” at the bottom. Looking at pictures of sugar maple leaves, both descriptions fit to me.
Forgive my crude drawings. I did not read it that way. This is what they described before the edit.
This is what I describe as the iconic maple leaf, and accurate to life:
https://en.m.wikipedia.org/wiki/Flag_of_Canada
Blame Canada! It isn’t a real country anyway.