Hedonistic poetry mocks social taboos, and in essence mocks the idea of a universal standard. The fact that someone is horrified because you mock an idea, and does not merely have a physical reaction to the situation, that is what is being mocked. When we mock such things, we praise life as it is, and betray a desire to form the ideal around life itself, not around what is purely relevant to human beings. I know you may think that there are better mediums for the idea, but the point of art is not to convince someone that what is being mocked is wrong, or that the mockery itself is right. The art is merely attempting to communicate the mockery, and its subtle implications, itself. The listener is left with the decision of what is wrong or right, that's a consequence of art being clear in its message, but maintaining moral ambiguity.