Motif importance comes into play, here. Yeah, I don't think this means anything other than the Knight having a connection to Asriel and that this fight is supposed to break your will to win.
Credits to ✡︎?❒︎❒︎♐︎ ⌧︎?♐︎ ♎︎? ?⬥︎⌘︎ ⌘︎⌧︎❖︎❒︎❒︎❖︎❒︎⌧︎ ◻︎⍓︎ ♋︎⌘︎♎︎⬧︎? ♎︎ ❍︎?❒︎⌘︎ for DELTARUNE.
