So basically you want to have a mechanism to be greenlit, before you post stuff, so you can be sure your stuff is actually accessible the way you want it to be accessible. Sounds reasonable. But should also be a one time process, and not an issue once you are a trusted dev.
The current "workaround" for new devs is to just publish it 2 weeks early, to give ample time for review . Since it its not searchable anyways, there should not be much issues.
But then there are the scammers. They will copy a game, including name and description and put it on a hacked account or a new one. Some even include downloadables, undoubtetly malware. So there is a reason to not make stuff searchable from the start, as you can literally copy the name of say "very-popular-game" and try to benefit from the name via search.
The putting it on a hacked account is especially bad. I do hope 2FA is mandatory for a greenlit account that can post paid stuff. I saw a hacked account with a published game only yesterday. It was a free game though. Account looked legit enough, for someone trying to figure out, if it were a scam. (Edit: I meant that the account had a previously published game a year old and the new scammy game)