I thought Roglič was going to win the TdF three years in a row, so I might not be the best person to talk to when it comes to unbiased assessments of this rider. I'm a Rog supremacist, i.e. I think on his day, in form, without injury, he can beat anyone in the world, even Vingegaard. He has that "peak performance" ability which only a few top riders have. So yes, if he's on a super day & his rivals are not (no matter their names), he'll put time into them.
And with regards to the Vuelta, I absolutely believe he'll beat Vingegaard, for sure. Maybe I'm way, way wrong, but IMO Vingegaard & his entourage are vastly underestimating Roglič in the Tour of Spain. These roads are tailor made for his qualities & the parcours of the upcoming Vuelta in particular is very punchy.
I think Rog will take time off Vingegaard on the punch finishes & in the ITT.