To be fair, in MMA they are 1-1. Putting it in perspective, nobody would care if this were a grappling situation instead of a kickboxing one. As if the kickboxing matches count but grappling matches don’t. One would get treated as a monumental achievement and the other would get treated as a fun piece of trivia.
Which is why instant rematches suck and are sometimes just a roll of the dice. It becomes meaningless. Peña completely shocks the world and beats Nunes, Nunes returns with vintage form and wins effortlessly, and now we have to do it again. What’s the point in counting losses of everyone gets a do over?