I agree, but the statement by Frontier was made in response to that exact idea - at the time, we were talking about prop butterflies so we could simulate butterfly houses.
Given that exhibit animals are largely prop-like anyway, I assume 'individuality' refers to having a name, welfare requirements, and being purchased from the market, regardless of whatever else it might be.
Edit: I've always thought a good compromise would be that you place the exhibit down pre-built and pre-filled and keepers still have to tend to it.