yeah, seems it’s like that everywhere: professional photographers are only allowed to take pics during the 1st 3 songs. it was the same in London, where the photographers were asked to leave after the 3rd song.
another thing is it with photographing for private use, I guess. particularly nowadays they can’t really keep out all the mobile phone cameras.
I don’t know how it is with videotaping for private use, though, as the band has their own video documentation of the shows going. 
I never heard that anyone of the band complained about photographing, although aggressive flashlights can be irritating and blinding, so they should always be used with politeness and care.
and of course the policy of the venues on photographing/videotaping are differing.