I think for a fair bit of folks, atheism doesn’t mean lack of desire to engage in theological discussion.

My partner and I both identify as atheist and often discuss religious ideas and read pro and anti religious materials.

If nothing else, it’s good to have an idea what the philosophies are and if you’re lacking in people to share and discuss with, these types of “churches” can be a great opportunity to meet similar and potentially like (or opposite) minded people to discuss and debate with.

My 2 cents at least.