This is another case of Government gone crazy. Sometimes the government should just step back and say 'we don't need to get involved'. The problem is that as soon as someone brings up this kind of thing, politicians *have to* say something and condemning it is probably the more popular option.
That is the problem with democracy - it is a popularity contest
FWIW - I would not go to such an exhibition anyway, but as pointed out by someone above, if I came across these in a museum or art gallery, I could see the artistic merit of these pictures. I would be unlikely to hang one up at home.