I do not think that you had any idea or you would, or should, have been circumspect.
I run Word on my Mac under OS X. It isn't the Word that is run under Windows but I still call it Word. I run Pages under OS X and iOS. They aren't exactly the same but have the same feel. The same for Keynote and Numbers. They both run iTunes, an App store and cloud services. Safari and Mail too.
Pick holes in the necessary differences if you want, your argument was still b.s.