Is this news shocking at all? No it isnt.We have seen already in the past about these Bankers got involved into any fraud or shady bonuses and this isnt a new business or new thing.
I personally blame the German government for having such a stupid tax code with such huge loopholes.
They all know that banks and others will exploit loopholes, this is what they've been doing since the dawn of time - so design the legislation to prevent them!
The loophole was open from 2001 to 2012 - so legislators were asleep at the wheel if they didn't realise that a) a loophole existed and b) didn't rush to close it.