I noticed that too, @Mario_Araujo . It's unclear how often the engine updates the Airtable Universe search index or whether there's a peer-review process. It has been a week since my first Universe publication, so maybe they expect revisions? Without progress updates or confirmations, it's hard to say.
Envato does silent rejections... maybe Airtable does too. I'm sure they get a substantial number of database submissions. I just hope they offer feedback to users.
It has been well over a year since your post, so it would be great to know the outcome of your experience!