Because the leaks from The PJ were being exposed as lies.
Were they? What in August 07? If so, that would be good, but it is clear Gerry McCann is saying a) there's rumours going around (presumably talking about the dogs findings) b) but he can't correct them as he is under judicial secrecy and c) it's good in that the abductor doesn't know what they know and can't know what is true or false from reading the papers or watching TV.
Do you interpret it any other way?
Ps Here you go Benice:-(wasn't not quoting what he said on purpose, I just didn't have the quote and the STV video seems to have been wiped off YouTube)
Gerry McCann: "The current level of activity, you know, I think you're absolutely right, there is a huge amount of innuendo which is being presented in various ways, suggesting that there may be evidence or facts behind it and there are none, and our opinion of what happened that night has not changed. We know certain facts, unfortunately because of the criminal investigation, we can't divulge them, and I want to make it absolutely clear, the reasons why we're not divulging the information; we will not make it easier for the perpetrator to cover their tracks. The police have all the information and we have bared our soul to them, and we'll continue to assist them in any way possible, but, you know, we have to keep silent. And, in fact, one of the slight positives in... in all of this is that there is so much rumour about what did and didn't happen, it's actually very difficult, if you're reading the newspapers, watching TV, to know what is true and what's not."