Zilla, if your concerns are health-related, I think there are bigger health issues with the food we cook than a little sodium phosphate, or MSG, or any other chemical that might be used to enhance meat. There are tons of foods that we eat every day that have greater amounts of chemicals than what is used in competition bbq, IMO.
If your concern is potential allergies of those that judge to the chemicals being used, then I'd suggest that those judges find another hobby besides judging food. It's no different than someone who has a nut allergy signing up to judge a cake contest. If the potential risk to a judge is present, it would be prudent for them to not put themselves in that situation.
If your concern is straying from the traditional ideas of BBQ by the use of chemicals to produce award winning meat, then I offer it is no better, nor worse than the practice of cooking prime briskets, wagyu or akaushi beef, or duroc, berkshire, or kurobuta pork in order to win.
...but that's just me