The term shomer negia is used by those who look at it as a chumrah akin to cholov Yisroel. Something that frummies are concerned with. And, as I am sure you are all aware of and have seen, there is no question that the negiah they refer to is absolutely related to chibah.
But it is not a chumrah, it is basic Halacha.
The real issue is that there are those who promote being shomer negiah as optional from a halachic standpoint. Which is a terrible misrepresentation.