To your point about context. Let me explain what I perceive to be the context.
What I see is someone who is committed to a materialist conception of the world vocally telling JWs and former JWs that they should conceive of the world in the same way. Only ignorance can lead to religious beliefs or deviation from a thoroughly materialist conception of reality.
I tend to think it's worth pointing out there are other ways of making sense of the world. And that while we can be fairly confident of many things (the shape of the earth and evolution) we should be humble enough to admit we could always be wrong.
And I think the worm eye view is a valid question. What you got against worms? How about a serious answer.
For Christians God defines truth.
For enlightenment materialists the human mind defines truth.
For postmodernists perspective defines truth.
Pragmatists ask why do we need to define truth anyway?
I prefer the latter options.