Hmm. it implies that she sees a purpose in one of your moves. Are you saying that there was no actual purpose in your move? (Like trying to checkmate, etc.)
I would guess that it was a situational comment. It would help if you posted the actual position.
oh, sorry. Here's the game link
Finished off, ultimately means check mate. A human may blunder but dealing with computers mistakes/blunder/etc. are never a factor. Promoting your pawn to a Queen/Rook would "Finish Off" Nora, though the game would not end until mate. The computer simply selects a saying from a pool of sentences without human understanding. The sentences provided are not always the best response from a human's perspective. If you told me that you were going to promote your pawn and then played 58. h7, I could tell you no this is a drawn game. Feasibly I could also say sorry I know my KP vs K end game, and you can't finish me off that easily. Clearly not the best reply.
I was playing against the Nora bot, right? And she said this: