You should probably research the players you are trying to trade for. I have a high level of doubt that Minnesota would trade Yurov for Reinbacher or Demidov straight up. He played 1C for the championship team in the second best league in the world. Viewed as the long term solution at 1C for a team that has never had a high end 1st line center. He's just not available short of something you wouldn't want to pay.
I would hope that they would trade him straight up for Demidov, who has elite potential, but am with you about Reinbacher. I don't know that Yurov will be a #1C, but I do think that there is a high probability that he will be a top 6 forward... maybe the 4th best forward after Kaprizov, Boldy, and JEE, though if Rossi continues to improve he might be behind him.
Main point is that the offer is not a good one, offering nothing to MN. No prospect is a sure thing, but what Yurov has accomplished since being drafted is the next best thing.