absolutely. i do not disagree. perhaps the extent of the gap between them would not end up as much ultimately, but it would be waaaaaay wider than last year.
i posted elsewhere -- it is silly to think Rog would be much (if any) improved on last year. meanwhile the only variable likely to be in ascendence is an amazing 21 year old, now 22.
this has been the history of cycling forever. and for the umpteenth time I suggest you look at the difference between the manner of Fignon's two wins.
On the age factor (i.e. young riders getting better) you could be correct, but I'm a bit burned on that particular aspect of cycling after I spent years following (& supporting) Andy Schleck in the Tour.
The "he'll get better, he's young!" promise turned seriously sour by the end. So I'm not a total believer in young riders automatically improving with age. Likewise Roglic is an interesting case of someone who has reached huge heights but always had some mitigated circumstances which explained losses (like his pre-Tour dauphiné crash last year).
In Basque Country both Roglic & Pogacar were very evenly matched, so I based my assumption & predictions on that.