I don’t get this take.
“Putting yourself ahead of the team” might be a bad thing. But in this case Primoz and Jonas aren’t putting the team’s win in jeopardy.
Maybe Jumbo Visma decide that three different winners is fun, maybe they decide that Jonas needs a better palmares, maybe having Kuss win will motivate him in future, maybe they decide to simply see who is strongest on the road, maybe they play rock paper scissors. Ultimately, between the three riders and the team management they’ll make a decision. And frankly any are fine. Internal team politics doesn’t seem like something to get worked up about.
“he will always be just a domestique” - I mean that is true, and has been for a while. He is clearly not as good as Roglic and Vingegaard. If he wants team leadership then he would have to go elsewhere.
That said, the ‘best’ rider doesn’t always win Grand Tours and he may well still win this race. It would certainly be the best story. If he doesn’t win, it will be because he wasn’t as strong as the winner. That may be a bit harsh, but very hard to argue that it is ‘undeserved’.