Can it be done? Yep. Can it be done safely going over the recommendations? I wouldn't.
Along with acceleration and holding the speed, you'll also have to remember braking and that it's going to take longer to stop. And you'll have an extra ton pushing behind you and the Jeep when you try and stop.
As for the frontal area, pure aerodynamics. You already have a barn door you are driving, so why would you want to tow the rest of the barn behind you?
Think about it, bigger area behind you causing all kinds of drag for the Jeep to overcome. And then there is the wind. Nothing like a big old sail back there to help steer your Jeep where it want's to go, not where you do.
I've driven semis, designed to tow big trailers. You have not lived until you've had the wind steer you in something designed to tow, I can't imagine, (OK I can), what it's like in a vehicle towing something it's not designed for. It's not going to be pretty.
97 Sahara, 74 Renegade, 72 CJ5, 55 Willy's (the Beast) Boss 302, 6:34 gearing, Bose 901 speakers.
God I miss that Jeep. Forgot the kinda Jeep, 80 SX4.