Is white phosphorus really a cool burning fuel?

About 11 months ago, I posted [a question on this SE site on cool flames](https://chemistry.stackexchange.com/questions/16664/what-is-the-lower-bound-to-the-temperature-at-which-a-fire-can-burn).


[One of the answers](https://chemistry.stackexchange.com/a/16751/7809) mentioned white phosphorus. However, a few weeks earlier, I played a game called Spec Ops: The Lines, in which the protagonist uses white phosphorus laden mortar munition, horribly burning dozens of soldiers and civilians. I was confused that the answer mentioned WP because of that moment from the game, and further googled it to find that WP munitions are actually heavily regulated, and using them against civilians is considered a warcrime. To me, that doesn't really seem compatible with "cool burning" at a temperature you can hold your hand in.


It's not my intent to cause this answer to be downvoted, but I'm confused whether the answer is factually accurate. According to Google, it burns at 5,000 degrees Fahrenheit, but that's the munitions.


