I think that would be a great feature, but if you have Chrome or Firefox you can still download from Emuparadise with a workaround script.
"NintenDON'T sue me please haha"
Before Emuparadise was unceremoniously forced to take down all of its ROM downloads, one was able to browse ROMs by genre. (One can still browse in this way, but the downloads just aren't there anymore.) Is it possible in the near future to add a browse by genre feature into the Vault?