I wonder how much Ink regresses when an ink spiritual giant is killed (in a manner of speaking, rendered soulless). It's operating system is Ink's soul clone. If a soul clone is destroyed, a cultivator suffers a lot. These soul clones can reanimate that massive, indestructible ink spiritual giant, so the soul clone must be signifcantly powerful. Thus if it gets destroyed, Ink might need thousands of years to recuperate. Or maybe Ink doesn't suffer at all. After all, it's not a human, nor a divine spirit. It's a primordial force meant to end the universe as scheduled.