Sorry to hear about your accident though I imagine a deer strike in Ohio is something you have gotten used to — I hear they are everywhere down there.
I’ve heard of similar stories about brush guards bending back, but to me that’s not the important question. Cosmetic damage is a given in a deer strike at highway speeds. What matters is mechanical damage.
A proper bull bar isn’t supposed to prevent cosmetic damage. When you hit a fleshy projectile weight 250lbs at highway speeds, stuff is gonna bend.
A good bull bar and even some well designed brush guards will take the brunt of this impact, and surely the vehicle will be damaged, but it will be way more likely to be able to drive home under its own steam or at least get out of the Bush.
In order to prove that any bull bar or brush guard is actually a damage modifier, it needs to be tested — so, using the same weight and same speed of projectile on two identical vehicles: one without a brush guard and one with a brush guard. According to ARB, they test their bars for exactly this kind of thing and the results are “bull bars help get you home”. Yes, it’ll still need repair but that is cheaper than dying of thirst waiting for rescue. Obviously the merits of this change depending on where you take your rig. If you are near towns and cities or tow trucks, or travel in a group, perhaps this is less of a concern.