I agree, there is no way you can point to 1" larger over factory as the problem. Sure it's might be a cause, but it's not the problem. I could see this argument if the stock tires were 28's and you were putting 33's on, but that's not the case. The stock tires on an OR model are 32x10.50x16 and more people are running 33x11.50x16. We are not talking about a large jump in size here.

Now, what i will say is the weight difference between the stock tires and most of the more aggressive off-road tire is quite a bit (even staying with the same size). But again, I point to the fact that with with the D35 in Jeep (which are just axles), people break axle shafts a lot sooner than they blow up diffs.

Having your diff the weakest part of the driveline is the stupidest thing I ever heard. I would not be afraid or complain one bit if I was blowing half shafts or axle shafts. That can be expected.