Losos, I totally agree with you about the situation where if it isn't crude it isn't funny.
Some of the best comedians are totally clean as far as the language is concerned. There is another video knocking around done by some Irish femails and it is crude and so unfunny. These 2 ladies have lovely voices and don't need to trawl any depths of crude to be very pleasing and funny.
Billy Connely is a very funny man, BUT he turns off every switch when he comes out with a boat load of bad language that he really doesn't need! He is a very funny and entertaining man without it.
I am glad that you liked it. I know I did.