ALL of the 670's I've repaired or used to record had a little toggle switch labeled "stereo". It linked the control voltages between channels, making it a stereo limiter. You may disagree with the accuracy of this but it's still a stereo limiter, used EVEN BY MASTERING ENGINEERS AS SUCH. You will of course, have to excuse the recording industry for misusing your new definition of "stereo limiter", but, even if it's a misuse it's common enough to not be called wrong. In fact, if I call any of the rental companies here and ask for a stereo Fairchild, they send me one!
Like "karaoke", or as it's pronounced in America, "karEokee". It would not be difficult to learn a closer to correct pronunciation, but we still all know what the American is talking about when they mispronounce it.
regards,
David Bock