I don't get it. Swiftcast is great utility and helps out your group if someone makes a mistake. That quick raise when someone dies during divebomb, or just a quick raise to correct a dps who got too enthusiastic dpsing that he forgot to watch for Imminent Catastrophe. Heck, throwing a quick swiftcast medica 2 because you were distracted by Titan EM will also save your team's life.

Sure, they should not be getting hit in the first place, but a healer with Swiftcast can help remedy the situation quickly. It makes you a great healer, not just a good one.