I've watch coons untangle all kinds of problems when they really want to get at food. That would be a no brainer for squirrels. However, if you are not having issues, it must be working in your situation.
One more thing here that always applies is our objectives. For me attraction to a specific spot is secondary. My purpose for persimmons and other soft mast is to feed deer. So for me, that means significant quantity. That means trying to protect individual trees over the long haul is time and cost prohibitive.
I could certainly see someone that wanted to plant a few trees for attraction and would go to lengths to protect them might try Lotus or Kaki. That is similar to what I'm doing with NG. For my American persimmons, I don't do any protection. Deer don't seem to bother my native trees. However, deer are curious. I try to graft them high enough that the scions our out of reach of deer. That is my longer term plan for the NG. I'm just waiting for a few native seedling to get large enough for bark grafting.
Thanks,
Jack