You don't take suggestions well do you? Clearly you've made up your mind and posting here is just a way to get everyone to agree with you. Everyone should get in the circle if the location isn't occupied by your team. You only need to be in there until the flag is yours or neutral. The battles can last a very long time in some cases and a stalemate will only benefit the team who holds the flag. Once the flag is yours you can leave the flag while the others stay in until they put in more then your teams number in the circle.
Your priority as a healer is to keep your team alive yes, while the others is to dps primary enemies and such but your job as a team to benefit your alliance is to make sure that flag is yours.

I assume your going to insult me for thinking something other the what you do since you already did it to someone else here but try opening your mind alittle. It's pvp, there's more then one strat