Wow, that was a really comprehensive summary! I pretty much agree with everything in your post, I just have a few questions that might be hard to answer since there isn't much information given about the Spiritual Realm:
Do you think there could be a "Spiritual Shadow", similar to how there are Cognitive Shadows? Could such a shadow even impact the other 2 realms, since the Spiritual Realm has a much weaker concept of location/time? Would there even be something to anchor your spirit-web to? If we are using Light Filter Realmatics, then does someone's spirit-web contain all of the information needed to produce a Cognitive/Physical representation?
I'm not the most versed in Realmatics, so excuse me if some of my questions have obvious answers lol.