The Klingons we saw in ST6 were more genteel.
I think we had more sympathy for them because of their situation in ST6.
It just seemed petty the way Uhura and Chekov (I think) rolled their eyes at the dinner table. Of course there are times when we are all in that situation ourselves and laugh at other people's faux pas. We just hope that nobody witnesses it. And I believe that nowadays we are aware to take into account different cultures.