2) Turn it to the old Seal of Command. A chance to deal a percentage of weapon damage as holy damage. (Ties right in with Inquisition too. No need to mess with GCD, but the damage should offset the loss of a free full TV or WoG or Inq.)
3) Immediately cast TV at full Holy Power. (Uncontrolled, works within current system, but lacks the WoG/Inq tie-in.)
The current whack-a-mole feel isn't just hectic apparently, it does interfere with the priority/rotation. I'd prefer option 1.