You're basically asking for the penalty of a KO to be reduced. This will not help players get better. Whether the fault of the healer or other player failing a mechanic(s), it is important for the game to teach why you don't touch a hot stovetop.

It's not the end of the world if swiftcast is down when you need to rezz someone. You can either wait until it comes off of CD, or endure the hard cast which is perfectly acceptable if the opportunity is there to do so.