Fair point, these things often relate to the potential marketability of the product. As you say, it's ironic that Arri seem to choose the most memorable camera names, particularly given their products are aimed at the few (or fewer at least).
I do have an issue though saying this or that camera is not a cinema camera. There are simply no rules when it comes to such things, particularly these days. I also feel the Canon C cameras cop more than there fair share of flack so I will continue to champion them :)