@adbenitez I did create pages, several times, successfully.
Delta is just not significant, or you failed to prove so. The Beeper article has many relevant citations that back its significance. That it didn’t have a lot of sources at first, is an seperate issue.
Do you have a link to the page you created on Delta? I’d like to see it, maybe I am wrong and it was a great article. (P.s. even removed articles are viewable in the edit history, if I’m not mistaken.)