He had also discovered something crucial during his forced introspection: the Soul Stones he had devoured had not disappeared. Sure, they had been digested by some unknown process, but the Naequat and Flintium ores were still in him under another form.
As for Lu Yan, to say that she could have made a blind man puke in disgust in her present state was an understatement. After having her bones pulverized, her appearance resembled that of a dehydrated mollusc.
It's fine with the length of the ordeal. If you want One day you could make side stories of a part of the different point of view or things we didn't see in these ordeals