Thats true, tho Id argue Carla had a much better claim at being the best than Nicco. There was a large enough divide between 35-15 that there was not really any women moving down from 35 to 15. We still had no idea how good Joanna was and it was assumed that Carla was probably near the top 3-5 in the division. Id be surprised if Nicco is top 20 in the next two years, when the division pans out with the like of some 35'ers and 15'ers.
If Conor beats Nurmy, I'll be willing to admit he likely is the best 55'er, but that is just owing to how highly I value Nurmy. There is a reason this will be his first MMA fight in ages where he is not the favorite. I won't be willing to say GOAT but I'll say best atm, tho Id like to see him beat Tony and some other guys. Im not holding my breath tho as I expect him to bounce again, especially with his tumultuous UFC relationship.