I don't think this is actually true.
It wouldn't be the same sort of nonexistence as we ascribed
Nonexistent Physiology to, but it's certainly something that wouldn't be included in a Tier 0.
These wouldn't be able to do anything (as they're nonexistent), any theoretical properties they have are irrelevant because they're nonexistent. They wouldn't be able to output any energy or have any particular speed. But there would be a large plurality of such things.
For every instant in time, there is a series of copies of an object, that are identical except they exists in locations at which the object does not exist, and accordingly are objects which do not exist. They lack the property of "existence", and have the property of "nonexistence", and are functionally irrelevant.