HappyDaze,
I would and have, as Circle of Defense is an ability the PC has paid for through XP, and it's using Parry/Reflect on two separate individuals, such as might be the case with an autofire attack.
Absol197's notion, which I pretty vehemently disagree with, amounts to either letting the PC use Parry/Reflect multiple times on the same attack, or to gain "phantom ranks" at what is a fairly measly cost.