Vingegaard has to show something before he gets priority over Kuss at this point, though his luck is probably that the best way to use him is offensively anyway.
I agree, tomorrow is about a lot of people, but definitely not about Vingegaard. I'm still convinced that this has always been Jumbo's plan: bring in Vingegaard last-minute'ish to make everybody think "wth?!" and get them kinda spooked. But they actually just brought him to support Roglic, find out how he handles the Tour/Vuelta combo (main goal I think), and let him give it a shot if something happens to Primoz.
Kuss? I think everybody at Jumbo was surprised at what he's doing now. Including Sepp. A very, very two-edged sword situation if ever I saw one.
IMO, if they try to protect his jersey tomorrow that'd be a fatal mistake. And if ever there was a guy I would grant the win to, it's Sepp. I just don't think he'll be able to make it another week though. Here's the double-edged sword thing: they're gonna have to make their choice before tomorrow's stage. Because what if Kuss is the one that goes on the attack? It'll all be down to Remco (if UAE is smart enough) and it would grant a huge opportunity to
either Kuss or Roglic.
If they just sit with the pack and defend any attack on Sepp, they could end up really shooting themselves in the foot.
I don't expect the latter to happen though.
Of course, letting Vingegaard attack would also be a viable option, but would the competition
really go all-out to chase him down? He doesn't look that strong to me.