Interesting: the president's husband got the Crown Order and not the Order of Orange-Nassau; is that what happened with previous state visits as well that the spouse of the head of state received the crown order?
There we no orders to be seen yesterday; so not sure why this was a white tie event and yesterday a black tie - probably they didn't exchange orders yesterday and thought it would be less obvious?
Edit: Checked previous state visits to republics (nice overview of outgoing state visits at koninklijkhuis
Portugal: no spouse
Italy: black tie/no orders
France: business/no orders
China: business/no orders
Korea: business/no orders
Poland: black tie/no orders
Commonwealth countries (other than UK): no orders (either black tie or 'lunch')
Finally, the incoming state visit by Argentina
was also a white tie event and the president's wife indeed got the Crown Order while the president received the Order of Orange-Nassau.
China's incoming state visit was white tie but no orders were exchanged (so the Dutch king and queen just wore their own orders - while princess Beatrix didn't wear an order).