Reminds me of a black and red letterhead file I got once with five different reds that were supposed to be the same color. All RGB, of course.
Worse, I got a two-colors job PDF, black and red, with a JPEG logotype in RVB, made by a professionnal designer with 10 or 12 years of experience in a com agency…
And when I phoned her to ask for a correct file, I realized that this moron had absolutely no idea of what I was talking about and asking: she said that on her screen the doc is black and red, when printed with her ink-jet printer the printing is black and red, so the file is perfect, and that is my job as a printer to make whatever is necessary to print it. And she added that if I'm not able to print her file, she'll give the job to another printer who will be able to print it. Period.
Those that send files to Vista Print get a rude awakening.
That's a problem: there is not awakening, cause VistaPrint (and other "printers" like them) prints everything in CMYK… so whatever colors are used in the doc: pantone/multiple pantones/rvb/lab or any else exotic colors, even a RVB JPEG logotype in a black and red letterhead file, are automatically separated in CMYK by the RIP, whithout any extra actions of the pre-press… and the moron who butchered his file receives a printed job that is looking exactly (enough) like the display on his computer screen, making him think that he did a perfect designer job!
No awakening, no lesson, no training… just people being satisfied with their own poorness and incompetence.