[Subfallen]

I think the justification of P and the facticity of P are different categories. If you believe P, for whatever reason, you have knowledge of P's facticity. Knowledge of P's justification is in a disjoint domain.

So I guess I would agree with Gettier...the JTB conflates two different categories of knowledge for no clear reason.

Multiple choice tests, for example...you can easily have knowledge of the correct answers without even bringing justification into the picture.