Yes, it probably is :)

However, I do think that I can provide an objective argument for it being poorly fitted. That argument is as follows; it is an important part of the Sequences that one should never write the conclusion to an argument before writing down the argument that leads to that conclusion (the last line on the page should not be written first).

Yet, in the particular case of atheism, we are shown only the last line, and not the supporting argument(s). Hence, poorly fitted to the Sequences as a whole.