A circuit like this is perfect for Roglic. He's naturally good at these short explosive efforts. It's his trainer who suggested they got lucky yesterday with the headwind because he's not quite there yet on the longer climbs.
I can't say I agree, at least based upon watching Rog for five years straight. His 'range' (insofar as when he's in good condition) is any climb, basically. Whether it's a 1km wall at the end of a Vuelta stage or the 20km Col de la Loze in the TdF.
It's the positioning required in a circuit race with flandrien style steep little climbs (on cobbles as well) which has often been an issue. But he was all over Landa today when he attacked on that penultimate cobbled climb & had no positioning problems at all, even without teammates there guiding him (he even jumped on Vlasov on the flat at one point).
So that's why IMO he appears to me in such great shape. He did what he wanted to, basically. He certainly looked much better today than he did 1 year ago when he got dropped by Simon Yates in last year's Paris-Nice. It's the body language as well (he looks spritely on the bike).
I'm hoping this encouraging performance is the first sign of that shoulder operation last autumn having positive effects; aka no more health niggles.