User blog comment:IamJakuhoRaikoben/Chapter 475: Dimaria Chronos Yesta, Review./@comment-5303512-20160302135223/@comment-7418318-20160302180405

Yes they are capable fighters, but in this war they are just two among dozens of capable fighers, which makes them a medium value ressource at best.

But they are the only two healers THE ONLY TWO and that makes them invaluable in that capacity. If one or two of the other capable fighters dies or is incapacitated... well though luck, it'll set the Ishgar forces back slightly but it's far from a crippling blow.

If one or two of the only two healers in the entire army is killed or incapacitated it IS a crippling blow to the Ishgar forces.

In Konoha alone they have at least a full dozen medical ninja, so losing a single one or two wouldn't be a crippling blow and still they have all those rules to preserve them.

Chelia and Wendy are literally the only two healers for the entire continent. IT DOES NOT MATTER if they are capable fighters, they are far too valuable to go into battle in anything but the most extreme circumstances.

Did I mention that the two are THE ONLY TWO HEALERS ON THE ENTIRE CONTINENT  ? Because that's how unique and thus valuable they are.

And just in case: No I do not consider Porlyuscia to be a healer. She's a herbalist and while she far outshines the two Sky Sisters when it comes to healing illnesses, she can't hope to hold a candle to practitioners of healing magic when it comes to quickly getting wounded combatants back into battle-ready shape.