In spite of millions of Filipinos in the US only a very little of this has shown up in the US. There are places, like Daly City CA, where you can indeed get pan de sal for breakfast.
In the end this is just a (very persistent) example of the cultural fusion of that earlier "globalist" world of the colonial empires.
Portugese/Spanish influence still felt centuries later. The Philippino Longanisa, also a breakfast staple, is essentially a derivative os spanish sausage as well. Good stuff!
Try the slightly crusty pan de sal if you can. Most of the pan de sal I have had was more like a soft bun...still good...but some of the bakeries make crusty pan de sal....very good.
IMHO
Pan de sal is good. Pan de coco is better.