If OS would do that, that would be pretty sweet. My main thrust, though, is trying to figure out why OS has come up with such terms as "weird", "supernatural" and "horror" and broken specifics books out based on such terms. I want to know the experts in the genre that contributed to the definitions OS is currently using, and the criteria used to determine these definitions. To me it is a rather shoddy approach with no real basis beyond, possibly, some dealers and advisors giving a stab at these definitions.
I'd say they're fudging the issue partly (as you stated) because of their EC bias, but also to allow for more issues to gain importance. There can only be one 1st horror comic, one first cover featuring horror as its' main constituent, one 1st horror series, one 1st horror story and one 1st horror adaptation.
That's five comics. Using terms such as "weird" (which was banned from usage by the code, but is nevertheless too vague a term) and "supernatural" (which IMO is not a genre but an element that can be used in many other genres) merely allows for more key or significant issues.