KL Has no losing matches, only winning ones and 5-5's.
The rules of an even match for KL are simple, and seem to get the waters muddied when they cant do the following: no special teleports, no 21212, no low hats up close, low hit box, spins punished hard, teleports punished with more than uppercuts, no ambiguous crossovers, no random dive kicks, JIP 1 Strings augmented to B1F1, and B333 (hit confirmed spin on b33) and 24 Overhead being punished on block by specials, inability to zone with low hats/projectiles.
All of these are evident and STANDARD in the KL mirror match (except for 24 overhead) and it is a solid 5-5, but for some reason KL supposedly has a few 6-4 MU's where he can use at least one of these in a fight, for example, against Cage, KL can use 1121 on a crouching block and JIP, can zone cage with low hats, ex low hat bullying in the corner,can exploit 21212
teleport grab wiff, can trade a spin with cages f3 after 11f1, can
teleport wiff grab out of forceball frame traps, but cannot 24 into low hats or overhead on block.
Unless a character takes away more from KL than the mirror match does, then it can't be a worse match. It isn't possible.
I have yet to hear a convincing argument to this point (I am still open to them), and I have been saying it for along time now. When you lose to Sonya, kitana. Kenshi, Cyrax Kabal etc, it could be you not playing the match up right or the very simple and realistic point that the opponent just plays it better than you and sits at an equal skill level.