Gold for Bassino was a surprise, but gold for Italy was not. Brignone winning wouldn't have been a surprise at all (a lot of people considered her the pre-race favourite after she dominated the SG in the combined just a couple of days earlier), Curtoni and Goggia were also contenders for the podium.
The only surprise gold was in the combined (though Brignone has multiple WC wins in the discipline and was probably the 3rd favourite after Shiffrin and Holdener), which makes up (just in terms of numbers, of course) for Goggia's disaster in the downhill.