I understand, it's a CYA type of reply.
But if you think about it the bolts and the tow brackets are the potential weak links. The bolts and the bracket are the points that will be taking the stress of being pulled on, not the bumper. But you need to feel good about your towing, that's what matters most.
Here is another bumper to consider,
Iron Cross Full Size Front Bumper With Push BarThere is a custom Jeep parts maker in Colorado that makes one with tow brackets that is way more affordable but I've lost the URL. I'll see if I can find it for you.