That is according to Greenwald. Judges and prosecutors talk all the time in private. This is your opinion. Many in Brazil and abroad don't think such practice configures collusion. Especially if you read the transcripts, it is far from being damming to Mr Moro and the prosecutors.
The level of corruption in Brazil now adays (as a product of the nearly 4 mandates under Lula) is extreme. It was enough of an extreme that the people decided to elect an almost unknown, highly polarizing figure such as Bolsonaro...
Politicians and underwear should be changed often imo!
He is a very credible journalist and his story was widely well-received, his methods of procuring the information aside. If you have disagreements you should state them instead of just stating that you 'have them'