When I found these points,they were one on top of the other.I'm convinced that they were made by the same individual,and from the same stone.But I'm not sure if they qualify for a cache.
I agree with your observation on these points, I would consider it a small cache. Big cache/ small cache, a cache is a cache! I have never found any official or biblical written requirements on the term, but alot of people sure have opinions on what it is, or should be, and you know what they say about opinions. Nice Finds!