I also struggle with it. I appreciate it's the highbrow word for referring to 'people skills' (amongst many others) But to my mind if there are lots of alternatives to more or less reference the same thing, then the shortest 'more focused' alternatives are going to win hands-down both on a search and certainly from a "Brandable" point of view it lacks that "Comfort factor"
it's just that 'Inter' part to the term, although used frequently in correct written grammar, just isn't part of everyday spoken language Imo