Generating headlines and interesting quotes are what reporters are paid to do, and by this point Letizia and Felipe should know that it's in their best interest to have at least some of those headlines and quotes say things like, "Princesses at the Museum: Hear What They Had To Say!" and "I really liked how the paintings were so colourful!' exclaimed Leonor, smiling sweetly." As opposed to the ones they've got now about that cloying, tone deaf Kurosawa article, (Leonor will never live that one down), Letizia not even bothering to pretend she likes Mallorca anymore, and of course Letizia snapping at the reporters for daring to break the cone of silence that apparently surrounds the two girls.
The Spanish media environment is tough, I'm certainly not denying that, and Letizia has endured plenty of unfair coverage over the years. But not all of the criticism is undeserved and it's not coming out of nowhere.
Generating headlines and interesting quotes is not what what the King and Queen of Spain should do or represent under the Constitution of Spain.
Under the Constitution.....
The King is Head of State, the symbol of its unity and permanence. He arbitrates and moderates the regular functioning of the institutions, assumes the highest representation of the Spanish State in international relations, especially with the nations of its historical community, and exercises the functions expressly conferred on him by the Constitution and the laws.
— Title II the Crown, Article 56, the Spanish Constitution of 1978
It is incumbent upon the King:
a. To sanction and promulgate the laws
b. To summon and dissolve the Cortes Generales and to call for elections under the terms provided for in the Constitution.
c. To call for a referendum in the cases provided for in the Constitution.
e. To appoint and dismiss members of the Government on the President of the Government's proposal.
f. To issue the decrees approved in the Council of Ministers, to confer civil and military honours and distinctions in conformity with the law.
g. To be informed of the affairs of State and, for this purpose, to preside over the meetings of the Council of Ministers whenever, he sees fit, at the President of the Government's request.
h. To exercise supreme command of the Armed Forces
i. To exercise the right of clemency in accordance with the law, which may not authorize general pardons.
j. To exercise the High Patronage of the Royal Academies.
— Title II The Crown, Article 62, the Spanish Constitution of 1978[3][18]
Pandering to gossip journalists looking for a headline from the 11 year old Princess of Asturias, is not, again, what the Queen of Spain has to do.