I agree that there needs to be an in combat revive. Out of combat only revive is pretty much useless in my opinion, for the CM and the Doc. If you are fighting NPC it seems to me that if one person is in combat the whole group is in combat, it doesn't matter if you are actively attacking or something is actively attacking you. And it is not possible to get out of combat unless you travel some distance away from the rest of the group, dragging the dead player with you if you are a doc or a CM who has enough medic skills to have the ability to do so. Most often you have to wait until everything in the area is dead. Most often in PvP, the medic, (whether CM or Doc) is going to be the first one to die. In instances, it is a closed area in most of them so you can't drag the dead player far enough to get out of combat.
The only reference point I have is how it was in Live so I am going to say how it was then. In Pre-cu, I don't remember if a doc or cm could revive in combat as I didn't play either. But I was leveling a jedi and know that if I were revived by a doctor, I would not lose any XP if a doc revived me because I did not clone, as long as my death was not from a BH. If a BH, I lost only half as much, saving the loss of XP from cloning, but still losing the equal amount of XP from the BH kill (hope that made sense). A jedi master healer did not have a revive ability, but very close to it. The jedi healer had the total heal that could be used on an incapped player. So in PvP it was possible to bring an incapped player back to full health before the death blow. I am not sure if in Restoration the total heal can even be used on another player. The description appears to say that it is just used on yourself. The main purpose behind a doc, cm, or jedi master healer is being able to heal others, not just yourself. So, if total heal cannot be used on others, it needs to be changed to allow it to do so.
In the NGE, there was no more doc or cm or jedi master healer, but only the medic, which very few wanted to be. Originally, there was no in combat revive, and which as stated above, made the medic pretty useless and no wonder no one wanted to be a medic. Later, an in combat revive was added. It was called a resuscitation if it was out of combat only, and revive if it was in combat. The cooldown timer was much longer on the in combat revive then for the resuscitation. There was also a pvp revive and resuscitation, and an area revive and area resuscitation (I don't remember the area ones enough to remember if it was just pvp or just npc or how they worked. I found this in the SWG Fandom Wiki which appears to say they were in both. Again, the cooldown timer being much longer.) The spy had the ability to put other players in cloaked or invisibility mode which could be used to get the medic out of combat.
So why say all of the above, just further justification for there being an in combat revive in some form. It really is pretty useless to just have the resuscitation ability whether Doc or CM if it can only be used in combat. More often than not, there is combat when someone dies, including the Doc or CM, or how else did the player die?