If it's a hard fight in which it's likely that people will die, it's better to all retreat and travel that annoyingly long path to the last boss.
Unfortunately, you have to wait longer before accepting an in-combat rez if you've been revived before the fight. The solution is to right-click the person who is trying to revive you and select 'Follow'. Sometimes, if you don't retreat after a wipe and people come back to revive you, you might not show up on their monitor: you're simply invisible. I think healing there makes up a bit for not being able to heal in groups in LotRO for a while. I only have one level capped character, and that is my Jedi Sage Ravanel. In SWTOR, there is no other support role apart from healing (you can either pick 'tank', 'DPS or 'healer' as role), so my choice was quickly made. Poor Ravalinde will have to live with being leveled as third. I really much like healing on rune-keeper, but minstrels are much more in demand in raids. In LotRO, I'll play lore-master and captain as mains this expansion. I was just thinking about it, and although my heart lies in support roles, healing is not my main delight in life. There are quite some people who play healers as their main in MMOs.
