I think it makes sense: even the utmost atheist needs to have beliefs; both in the ‘individual facts’ way (you can’t be rational about everything all the time), and in the ‘cosmovision’ way (ideas about what to do with one’s life, etc.).

The OP was just being a little bit provocative while calling those beliefs a religion, which I think can be allowed; at least for the fact that there are a bunch of people that are religiously “atheists”.