The size of those vehicles certainly suggests as much and I have no doubt that the convoy is in Europe somewhere, they had got the Giulia first and they will definitely have the Stelvio on showroom floors before any other continent.
That would make more sense than the Stelvio bring delivered into the hands of owners so early. Automotive publications haven't had a chance to test ride them yet as far as I know, at least until that photo you've posted.
Yeah... I'll give it a week or two just to see. Social media is a great source to even find teaser pictures to help you get an idea of who'll be pushing out a review soon. They often say "review coming in a week" or something along those lines.
Sorry, but Stelvio orders for "First Edition" version opened in mid January, orders for regular versions started in late february in Continental Europe, and first deliveries in Italy and Switzerland were in late february, and in March for the other major markets of continental Europe.