What a Matchmaker Is Actually Solving For
A matchmaker is not trying to identify the most deserving challenger. They are trying to produce fights that are competitive, stylistically entertaining, and commercially meaningful, in that rough order, subject to who is available and willing. Competitiveness matters because a lopsided bout sells once and then damages the loser's value. Style matters because two fighters with the same approach can produce a stalemate while a striker against a grappler reliably produces action. Commercial meaning matters because a fight needs a story a casual viewer can follow in one sentence.
Those criteria frequently disagree with the ranking order. Two adjacent contenders may be stylistic mirror images whose fight would be technically excellent and unwatchable. A lower-ranked fighter may bring a following, a language market, or a finishing style that makes them a far better opponent for a champion in every respect except merit. A matchmaker weighing these factors is not ignoring the division. They are optimising a different quantity, and the ladder is one input into it rather than the answer.