I could believe that her DH can taste it in small quantities. One cookie I used to love was changed and they added a teeny bit of coconut to it. I hate coconut and spit things out the moment I taste it. It was one of the last ingredients listed and probably not a lot but I could still taste it strongly. My husband didn't believe me at first until we looked at the package. He even asked "how the heck can you taste that?" Cinnamon is a strong flavor in general so I could see someone tasting even a small amount.What if he didn't know cinnamon was an ingredient? I don't think I've ever used more than 1 tablespoon in anything I've baked. Would he really know?
I personally love it though. To me there is no such thing as "too much" when it comes to using it.

. My husband and daughter like it okay, but not in the quantities DS and I do. So, it does not fall along gender lines in our family at all