does "git clean" deliberately ignore "core.excludesFile"?

  not sure why i never noticed this before, but the "-x" option for
"git clean" reads:

 -x
     Don’t use the standard ignore rules read from .gitignore
     (per directory) and $GIT_DIR/info/exclude, but do still use
     the ignore rules given with -e options. This allows
     removing all untracked files, including build products.
     This can be used (possibly in conjunction with git reset)
     to create a pristine working directory to test a clean
     build.

  but i see no mention of whether the file specified by
core.excludesFile is taken into account, and perusing the source code
doesn't seem to show that command checking that config option.

  am i misreading something? and if not, is there a reason git clean
does not consult core.excludesFile?

rday