I've never seen were jeeps bumpers were part of the frame. They're parts, but not integrated into the frame.
Overkill never hurts. We've had the same Blue ox tow bar for 5 years now and have used on 3 different vehicles, it's rated for 10,000 lbs ( overkill for any of the 3 jeeps). Safety first and peace of mind second. It articulates better than most ( pivots on a ball) and has never left me struggling to get the pins out. Aventa is the model from blue ox. Use their base plates too.
Brake Buddy for the supplemental brakes ( can transfer to any vehicle), used that for five years too without issues.