Prostitution is sex trafficking. Grabbing the Johns(no pun intended) is part of enforcing the sex trafficking laws. You're making it sound like just getting the pimp is the sole objective. You're trying to say the net we toss out to catch criminals has to be small(narrow), and only allowed to keep the targeted species. Actually, the smarter enforcement throws out a large net, and doesn't throw back the bycatch. No DA or judge is gonna throw out the case, because they happened to catch more crimes. If you're caught on video committing a crime, during an investigation, they don't shut down the other investigation to make that arrest right away. Lastly, if they suspected 'human' trafficking, it doesn't mean they felt all those girls in there were being sex slaves, so they better raid the whole place right now. It could just mean there was a suspicion of it. Stop listening to Wuuudy Juuuwiani.
...and furthermore, the NFL should come down VERY hard for the face of the league to exhibit this type of "behavior".