Well, I'll leave my thoughts here.
After reading the regeneration thread, I interpreted this: When a character has their entire body erased at the most fundamental level (with no quarks left), and then he regenerates from that damage through his soul, concept or whatever, then he receives Low-Godly regeneration. But, if he dies after having his body completely destroyed, and comes back to life thanks to his soul, concept, or whatever, he receives resurrection, because regenerating presupposes restoring damage to stay alive, but in a case where the character actually dies and then comes back thanks the soul or other connection, is not regeneration but resurrection, for to be regeneration he cannot die.
Examples:
•The character has his entire physical body destroyed at the most fundamental level possible and not die, however, from his soul, he restores the body, and stay alive. He has regeneration.
•The character has his entire physical composition destroyed at the most fundamental level possible, and dies, however, thanks to his soul, he returns to life and restores his body. He has resurrection.
That's what I managed to understand from the regeneration thread, and if I've made any mistakes, correct me.
My point here is: Edo Tensei's "Bodily Restoration" does not fit resurrection for these reasons: They cannot die, as they are already dead. Although has been said by Kabuto: "As long as his soul is bound to this World, he will come back to life", it does not mean that they die and come back when they are destroyed, it is more an expression of "they will always regenerate", I mean that because that was mentioned several times that they are already dead/they cannot die. Sasuke tells Naruto not to worry about the Kage as they couldn't die. Tobirama says that they are not affected by the Infinite Tsukuyomi because they were already dead. Tobirama says that if they are destroyed by the Gudoudama with the effect of Onmyouton, they will no longer regenerate and then they can die, in this case, due to how this site considers Onmyouton's relationship with Edo Tensei the "dying" that he refers to is that they will return to the Other World, as the jutsu will be completely nullifield, that is, the edos are already dead, "dying" for them would be returning to the Other World, and this does not happen when they are completely vaporized, they do not "die and come back", because they don't go to the Other World and return. Their bodies are restored, is regeneration, they keep "alive".
In short: The Edos are already "dead", they cannot in fact "die" by complete bodily destruction, they will keep "alive", being "alive" for them means their soul keep in the Living World, their bodies will restore after being destroyed. And since it's implied that no matter what level of bodily destruction, they will regenerate, it means that even if someone destroy their body at the most fundamental level possible, they will continue to regenerate thanks to the soul, so, the Low-Godly regeneration must be maintained.