Actually the press seem to disagree with you. They were prasing the chancellor's look.
And, honestly, I was positively surprised as well.
We usually just see her with pant suits. The gala look was somehow really elegant.
I liked the green jacket she wore. IMO the dress looked really elegant in videos.
Video:
Dronningen om operaåpningen: - Jeg har ikke ord! - Rampelys - VGTV
The Queen obviously loved the Gala opening
and the Chancellor welcomed the Press in German.
Another Gallery by Side 2 (scroll down :) )
- Dette hadde jeg aldri trodd - Side2
Close-up of Sonja's dress:
http://pub.tv2.no/multimedia/slideshow/157983/1.jpg