Perhaps I’m just over analyzing this sentence but here’s the part I’m going “arroo?” at.
A PointLight can at the moment not be used for casting shadows (using the PssmShadowRenderer - read more about this below).
I think a better sentence for this may be:
A PointLight cannot be used for casting shadows.
Or do you mean more:
A PointLight cannot be used for casting shadows with PssmShadowRenderer (Read more about this below).