What if the documents were leaked in such a way purposely? What if the rest of the missing data is to be used for extortions?

Fair enough, but you need to understand how the data was analysed and the questions that were not answered by the analysts before singling out one country or one political leader.

The German newspaper, SudDeutsche Zeitung claims “that the 'leaked' data is about some 214,000 shell companies and 14,000 Mossak Fonseca (the law firm in Panana) clients.” Did the analysis include how many U.S. Senators are involved in such companies? Which European Union politicians? What are the big Wall Street banks and hedge funds hiding in Panama? No it didn’t.