I don't think that really matters when you're marketing to the public. Using language that people perceive in a way that benefits you, and then claiming it was the customers fault for not understanding the technical meaning and reality of the words you used is at least unethical and possibly illegal.

If I make a chocolate bar and tell everyone it cures cancer, I shouldn't be able to wriggle out of lawsuits by saying "cures" doesn't actually mean "stops a disease" with some complex medical jargon.