It doesn't really disturb me all that much.
If anything, it's unavoidable - repressive conservatism will always result in outburst of defiant behaviors.
Realistically, there aren't too many ways to get past repressive conservatism ; giving them new enemies is one of them. It's much easier for society to accept unmarried couples having sex in their bedroom when they can focus their hatred on people having public orgies in parks.
That's the part that bothers me. Public sex just kinda creeps me out. (Which, incidentally, has been legalized in a park in Amsterdam.)