simple-init's glean-install installs systemd service files on ubuntu 14 (upstart)

glean-install
INFO:glean-install:Installing systemd services
INFO:glean-install:glean.sh in /usr/local/bin
INFO:glean-install:Installing glean@.service -> /usr/lib/systemd/system/glean@.service
INFO:glean-install:install -D -g root -o root -m 0644 /usr/local/lib/python2.7/dist-packages/glean/init/glean@.service /usr/lib/systemd/system/glean@.service
INFO:glean-install:Replacing GLEANSH_PATH -> /usr/local/bin in /usr/lib/systemd/system/glean@.service
INFO:glean-install:sed -i "s|%%GLEANSH_PATH%%|/usr/local/bin|g" /usr/lib/systemd/system/glean@.service
INFO:glean-install:Installing glean-udev.rules -> /etc/udev/rules.d/99-glean.rules
INFO:glean-install:install -D -g root -o root -m 0644 /usr/local/lib/python2.7/dist-packages/glean/init/glean-udev.rules /etc/udev/rules.d/99-glean.rules

cat /etc/*release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.5 LTS"
NAME="Ubuntu"
VERSION="14.04.5 LTS, Trusty Tahr"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 14.04.5 LTS"
VERSION_ID="14.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"

/usr/lib/systemd/system doesn't exist before glean-install

/usr/lib/systemd does:
/usr/lib/systemd# ls -latr
total 16
drwxr-xr-x 2 root root 4096 Aug 18 20:42 ntp-units.d
drwxr-xr-x 60 root root 4096 Aug 22 12:14 ..
drwxr-xr-x 4 root root 4096 Aug 22 12:15 .

should glean-install be checking for existence of /usr/lib/systemd/system instead of just /usr/lib/systemd ?