As a spineless Balthasarian worshiper of the Hegelian Kirkengeist it is natural that Ouellet (like his Germanic twin Schönborn) should betray those fighting for the truth of the faith against the corrupt men who have taken possession of the Roman Curia. For them there is no untainted Gospel preached by the apostles from the beginning never to be believed differently, never to be understood in any other way. Instead, there is the self-realisation of “the God who is history” (in Kasper’s words) through the institution of the Church (which, for them, replaces the role played by the Prussian state for Hegel). This allows them to change their beliefs to suit the needs of ecclesiastical advancement without scruple. This allows Ouellet to call the criticism of the pope blasphemy and insinuate that Viganò is not in communion with the See of Rome because he has had the temerity to expose the immoral acts of its bishop.

On the purely tactical level his strategy is to scream insults as Viganò while conceding his central allegation to avoid the difficulty that Viganò is telling the truth.

https://www.wsj.com/articles/vatican-denounces-accusation-against-pope-but-confirms-key-point-1538912551