Many years ago, flying into Nice via Rome (with EK) during a mistral, and having to divert to Marseille due crosswind Nice going above max and then getting constant low fuel warnings while on finals in a max crosswind case.... I learned my lesson.
Everything was done by the book, we had even put extra fuel due weather and complied to the FOM, and landed with approx 45 mins in tanks... however the knotted gut feeling that exists when you know there is not much fuel sloshing around in the tanks after a very long duty day landing in an unfamiliar port is not very comfortable.
I would strongly recommend that those who write and enforce these rules should get out on the line, fly around using their own policies, fuel and others, and get first hand experience on the repercussions of their desk bound decisions, maybe then operational policies would be established outside of the bean counters office. That's my 2 dirhams worth, off to get my beauty sleep on my min rest DXB layover.