Here is a quote from Wiki:
"L'Osservatore Romano and the Magisterium
A common error for journalists and theologians is to interpret the texts of L'Osservatore Romano as if they were of official value for the
Magisterium. In fact, they cannot have such a value, except if a high-ranking
bishop is writing a more solemn text, and not a mere theological opinion. Otherwise, L'Osservatore does not have the ability to write or approve
encyclicals and papal
allocutions.
For instance, a 2008 article expressed the wish that the debate on
brain death be re-opened because of new developments in the medical world. An official spokesman said that the article presented a personal opinion of the author and "did not reflect a change in the Catholic Church's position".
"
The Vatican newspaper does not have authority to teach Catholics. Rather it reports on what is going on, and sometimes has articles from bishops and others that have the authority attributed to them that it would anywhere else (for example an encyclical reprinted in the newspaper). In no way shape or form should normal articles from the newspaper be considered the last word or even the official word of the Vatican. And, it is certainly not infallible.