I think options would be to buy an aftermarket switch or tap into a fuse that is only on when the engine is on. However with fuse tap you can't switch on/off manually.
Do you have upfitters? Decide which switch you want to control the light. Each switch has color coded wire ran to the engine bay. 2 wires from the lights. One goes to ground other goes to the colored wire.
Nothing wrong with the badlands grill at all.. Just like almost every post on B6G everyone just trying to make their Broncos different, fender flares , wheels, Bronco Script badges, bumpers, vehicle wraps. Etc.....the grill is no different.
They are LED lighrs. I wired mine to my upfitter switches black to ground, red to switch wires.
You could also wire to your fuse box. Red to fuse box and black to ground.
I totally get it. The lights are not for everyone but I think the indentation helps break up the flat "brow". Pics in case it helps someone make a decision.