But there is a connection between the X and Y in this case.
One is a subset of the other. We're talking about the same thing man, I'm just making the point that I feel that there should be greater emphasis on the subset.
Look at the top thread in this post, people are doing a very similar thing.
I truly think that the pop-sci interest in mitochondria stems from the nickname and for no other reason and to me that's a very interesting thing.