Topic: Regarding the 'public' tag

Is there a reason the wiki for public says it applies only to sexual activity in a public area? As quoted from the wiki article:

"Images or Animations in which sexual activity is depicted in a public or otherwise populated area."

I can see how it may have come about - seeing how public_sex and sex_in_public are aliased to it - but I was unsure why this definition is used; wouldn't searching public sex work for finding posts depicting sex in a public area? I've seen many posts with the public tag that didn't have sexual activity involved, but did take place in a public setting. Should the wiki be changed to simply read as: "Images or animations that depict a public or otherwise populated area?"

Updated