Yes that's part of the point. Just like any good lie, one that works well has to have a grain of truth. Even grains of truth that do not actually defend a point can be used to construct very convincing lies, like religion.

I am pointing at some of those tiny, itty bitty and not justifying in any way grains of truth that religion relies on. It does not make sense on the whole, but individual pieces that people readily latch on to have some truth, or semblance of truth.

An all-knowing being allowing the world to continue on its own despite knowing what will happen does NOT disprove religion on its own. At all. It also does not prove religion in any way. The entire premise is flawed, but that's the point: people latch on to the grains of truth, not the whole premise. At least until after they've drank the koolaid.