I think until this point each Mauler thought not only that they were the original between the two current Maulers, but that they were actually the original Mauler and who had never died. Each death always happened to be the clone because they were inferior. A single uninterrupted chain of consciousness. Now the clone knows it isn’t possible for them and if the scarred Mauler dies every subsequent clone will know they’re a clone even if they’re the original of the current two.