For people in consensual relationships with people who have STDs such as herpes, sex has to be performed extremely carefully. Some partners don't care, but others are very paranoid about the spread of the disease. I highly doubt this is marketed towards the general public, more for already exposed individuals. Having known a few, I know how stressful sex and relationships can be for them.
Essentially, I strongly agree with what you're saying here. I think this is intended for people who have STDs or other skin-to-skin transmissible illnesses. Those people have as much right to have sex as any other, and precautions such as this are reasonable. I mean, cgod - do you think someone who uses a dental dam when going down on a woman "shouldn't be fucking...should be in counseling"?