Yes. Having thought about it I am not convinced it wouldn’t be all that useful for me either. At first it seemed like a good idea but I can just store the state or the html in my case and this is good enough for now.
I guess if I was using PM collab features than in scenario when two people work on the same document it could be a nice way of seeing what the other person has done / edited out. Perhaps highlighting the bit of document they worked on. If that is even possible …