That's an interesting question: What is she basing this theory on?
The first product that jumps to my mind that had text printed in multiple languages is the McDonald's packaging a few years back when they had "I'm lovin' it" written in lots of different languages all over the place.
I certainly didn't fork out too much for my McTasty meals back then..

Good examples of this would be the use of Italian or French words in cosmetics, beauty, and fashion - because those two countries are perceived as sources of high quality products in those niches.
The case study I would use for this is Juicy Couture, a relatively premium brand actually founded in Arleta, Los Angeles, California.
But looking at their branding, product naming and aesthetic, you'd have been forgiving for thinking this was a concept coming straight out of Paris or Milan.

It's more about the perceptions that foreign writing might trigger, something marketers and advertisers are counting on.