I would say that the "All Ores" Category Extensions does deserve a new category due to the addition of copper.

Sorry for not being clear, but I did mine them all. At the end of the run I had all the ores, including emeralds, in my inventory.

I just finished a 5:18 run for All Overworld Ores - No Emerald which would place me 3rd. However I stumbled on emeralds before I found the diamond and so I technically also qualify for All Overworld Ores. But in that category I would place 4th. I technically meet the requirements for both categories so am I allowed to submit to both?