FAIL: The distribution must be: Ubuntu-LTS

Hello, should i be worried about the below failed message? doesn't seem to be a requirement. i've upgraded my Ubuntu from 16.04 to 18.04 and ran ready...sh

:~$ ./ready-for.sh --install LFS242
PASS: The time on this computer seems set reasonably close to global time

Checking that this computer is suitable for LFS242: Cloud Native Logging with Fluentd

PASS: CPU architecture is x86_64
PASS: 2 core CPU
PASS: Your CPU appears powerful enough (currently at 9200 BogoMIPS cumulatively)
PASS: 8 GiB RAM
PASS: 45 GiB free disk space in /home/username
PASS: 46569 MiB free disk space in /boot
WARN: Linux distribution is Ubuntu:amd64-18.04 (bionic)
FAIL: The distribution must be: Ubuntu-LTS

PASS: Internet is available (which is required in this case)

WARN: Some packages are missing
WARN: About to install: gnome-tweaks
Is that okay? [y/N] y
[sudo] password for username:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
gnome-tweaks
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 218 kB of archives.
After this operation, 1,245 kB of additional disk space will be used.
Get:1 http://us-west-2.ec2.archive.ubuntu.com/ubuntu bionic/universe amd64 gnome-tweaks all 3.28.1-1 [218 kB]
Fetched 218 kB in 0s (2,064 kB/s)
Selecting previously unselected package gnome-tweaks.
(Reading database ... 83277 files and directories currently installed.)
Preparing to unpack .../gnome-tweaks_3.28.1-1_all.deb ...
Unpacking gnome-tweaks (3.28.1-1) ...
Setting up gnome-tweaks (3.28.1-1) ...
Processing triggers for mime-support (3.60ubuntu1) ...
Processing triggers for hicolor-icon-theme (0.17-2) ...

PASS: All required packages are now installed

WARN: You may have troubles using this computer for this course unless you can fix the above warnings.
WARN: Ask your instructor on the day of the course if you have more questions.
NOTE: Make sure to follow the instructions above to fix any issues found