Eh its just tax avoidance from the Western guys. The Icelandic stuff appears to the exception as that had something to do with the Icelandic Central Bank and how crazy that got not too long ago, but other than it's just good old fashioned tax dodging. I dont think any of it is breaking news to anyone.
The Russian/Chinese (Bashar al-Asad is even on there!) stuff is much more interesting and impactful. Putin has managed to insulate himself from Russia's blatant corruption by saying the system is corrupt but he is not, this drives a stake right through the heart of that. And make no mistake, its blatant corruption; they do things like loan someone $10 and get $50m back in interest (in exchange for some favor) in almost broad daylight but deny it by asking "well... then where is the money?" The crackdown from this, particularly in China, is going to be immense. Somewhere a Chinese 10th grader is doing a report on the Panama Canal and cant find any sources on Google for some reason.