We could even move rule all down to the other rules or?

You mean before rule purge? Yes. One would just have to check if snakemake -j8 would still trigger the all rule, or if it would go into one of the include: ... files

snakemake triggers the first rule by default, the name all is convention.
(first rule after inlining all the included files) EDIT: Indeed, included files are ignored: modularization docs.