#1 is also referenced by your link on the 5th post, doesn't mean it is correct, well it is correct until you reboot the esxi(5) host.
What happens is that /opt/ontap does not persist reboots, even of you run auto-backup.sh
What needs to be done is add the following to /etc/rc.local
cd /
tar -xvzpf /vmfs/volumes/path_to_my_datastore/distfiles/mbrtools_esxi.tgz
chown -R vpxuser:root /opt/ontap
find /opt/ontap -type f | xargs chmod 755
Then run auto-backup.sh
#2 is _also_ documented on page 31 of the VSC 4.0 installation and configuration guide, not sure why they wrote a KB.