Well the insert is supposed to replace the one that comes with it, that person simply put it behind the original grill. It's supposed to look like this
I suppose it would reduce airflow, although I don't plan on doing any major towing or anything.
Does anyone know if a flag grill insert will work with the front trail cam? I think it might cause issues because it looks like the front trail cam is actually mounted to the grille insert that comes stock.
Just a guess but it looks like the maximus 3 (your favorite one) bolts in where the front skid plate bolts on.
Also it says this in the description
Designed specifically for the 2018+ JL Rubicon Steel Front Bumpers. Direct bolt-on application
If you scroll to the bottom of this page you will find a chat button, if you click it, it will connect you to an FCA representative who can update you on your status. You could also get updates through your dealer.
https://fcacommunity.force.com/Jeep/s/knowledge