Ann: Drilling Confirms Continuity&Extension of Lithium Pegmatites, page-34

Ahhhh I think Your not fully up to date.
There are 12 historical mined sites in one tenement.
So there are more than likely many unseen pegmatites or pegmatites at surface that may run for many meters in length or depth.
Theyve only put out results on two surface mined pegmatites as a proof of Lithium. With one more to be drilled.

When I walked over the PLS tenement You could only see about 6 protruding pegmatites.
Sooo one could conclude that there are many subsoil pegmatites with the probability of one or more Mother load pegmatites where Lithium loaded pegmatites may join up.

The Pegmatites drilled are actually matching the dimensions described at surface.

4 to 6 days until the confirmed drill results and Lithium grades on only 3 pegmatites!