I do get the distinct impression from you and from azdak that German theatre is very keen to Say Something (which is not necessarily the same as make any sense). This made a change from tradition, but it was a bit surface, really - you could perhaps make more insightful critical analysis by being less obviously Shocking.

I went to Lehar's house in Bad Ischl on holiday some years ago, but don't really know much about him beyond that his wife was Jewish. I can appreciate that as an individual he could plausibly have been worried that if he rocked the boat something would happen to her, but that doesn't get you very far when everyone behaves like that...