No one got glad by doing that. I don't get people who use comps as an excuse to getting glad. Like, do you not realize that you que into mirror comps or other comps just as good all the time? A priest playing PHP lasts season in the way you describe would never get glad because any other PHP or any other team really would capitalize on him staying out in the open.
Sorry if I offended your comp. But priest could play recklessly and get away with it as PHP. You know why? Because he has 2 sacs to dispel his magic cc, an aura mastery to remove silences and make him immune to them,two bops just in case he gets warrior feared or blinded and a pvp trinket, plus he had ret off healing in case he gets swapped to. All of that while hunter+ ret smash someone's face and load as much instant cc as it is needed to reset DRs on first CC that landed. So, if you really think it took skill to get glad as that comp, then I am afraid you are clueless.