e photons created during the split will travel at light speed towards Earth, and occupy the space in which 'normal' light hasn't yet had the time to travel. Stars now also produce normal photons which seamlessly follow those already on their way.
This gets as close as it's likely to be possible to making sense out of Arkathon's ramblings. But it still leaves a very odd thing on A's plate, which needs to be addressed: supernovae more that 6000 light-years distant. If we see one in modern, non-spiritual light, it must, of necessity, happened more than 6000 years ago - physical light only can travel so fast. But that puts the explosion before creation: the star blew up and died before it was born.
All supernovae seen within the last 400 years or so have been further than 6000 LY - most many thousands of times more distant than that. Their explosions are thus fictions - God is deceiving those poor benighted astronomers with the spiritual-replaced-by-physical light from His creation. Why would He do that, Arkathon? Or are supernovae just Satan's little light shows, and only appear to be exploding suns in every minute detail?