First, keep in mind that Papa Ratzinger was talking to a guy who had a microphone. How is that the same as an official act of the Vicar of Christ exercising his magisterium?
Also, he was asked if the Church is opposed in principle to the use of condoms. He responded – and it may be important to read all the words. My emphases:
She of course does not regard it as a real or moral solution, but, in this or that case, there can be nonetheless, in the intention of reducing the risk of infection, a first step in a movement toward a different way, a more human way, of living sexuality.
“Of course” means that the Church’s teaching is pretty clear. Also, just as the Pope clarified in a presser on an airplane on his way to make an apostolic visit, condoms are not a real solution because they fail both to prevent disease and conception. They are not a “real” solution. They are not a “moral” solution because of the motive for their use in most cases. Nevertheless, sin is also wrapped up with “intention” in individual cases. Furthermore, there is a human way to respond to the problems for which some people claim condoms are the answer. Condom use is a more human way in individual cases such as that which the Pope identified in his non-magisterial interview. That doesn’t mean that it is yet a good way. It is simply better than the disastrous way employed before a decision was made to move towards a more human way. Also the word human implies that the acting subject is a person, an image of God.
That is a quick glance at what the Pope said.