My style is simply to explain the physics as simply as possible without making it entirely wrong, rather than relying on elementary generic textbooks...
And that naivete/dishonesty can be exposed by seeing if they are treating each aspect of the model on its own separate footing, or if they are forced...
The basic problem is that general relativity is a theory that works on a smooth spacetime that allows you to talk about the (x,t) of an event, as if...