>> Perhaps, `org-publish-get-project-from-filename' can be rewritten
>> without `catch' and `throw' using `cl-some' or `seq-some'. This is not a
>> bug. But, it might help improve readability of the logic.
>
> Done.

Nice. Looks good.

> Note that `seq-some' is not an option since we support Emacs 24.3
> and onwards.

Yeah, I guessed.