That ain't good heel work, that's racist douchebaggery, especially looking back and seeing how he's calling Black folks crack babies....You're not wrong.
He also wouldn't do it if the kid was sitting his dad (or any male supervision).
He is very strategic in his assholery. i.e good heel work
As stated from many people in here, had he tried that on a black man, he might've caught hands just for snatching the cup.
He might not have even had a chance to throw it at a kid.