The claim was Roglič is Contador of the current generation.
You can't map 1:1. I can agree with that. But in the gist of it Roglič is Contador of the current generation. Pogačar is currently considered not only to be Froome of his generation, but Eddy. As Roglič has already beaten Pogačar on a GT, week long race, monument and some semi-classics. There is no special reason to consider Roglič any less than that. In addition Contador himself choose Rogličes wheel on that stage we all still remember. Hence the man himself choose Roglič as being the lineal Contador.
Let's be realistic. Primoz is no Contador and never will be. Just like Contador is no Eddy and never would have been.
Roglic is Roglic and he's building his own Very Worthy legacy that hopefully will stand the test of time. That should be enough for even the most ardent fan.