If they aren't on the wiki, then they aren't canon.
They are not, unfortunately.
Unless if The Ink Tank plans on using the joke aliens from Matt Wayne list to expand the lore of Ben 10. Unfortunately no.
And also by the way can someone sent me a link or picture of the list with the Alien names?
https://ben10.fandom.com/wiki/File:Matt_Wayne_Joke_Aliens.png
@Gjc13 thank you.
No problem.
What do you think?