You are an aerial porter, so I'll defer to your judgement. However, in light of the 747 that crashed due to a load shifting, those cargo straps with no chafe protection do look sketchy. Especially if you add a 30-40 degree climb angle into the mix.
I know. Believe me, those MRAPs should have been sent out through C-5's or C-17s. Now, if a Cadiallac Gage Commando M1117 weighs roughly over 39,000lbs, we can safely assume an M-ATV probably weighs about the same, if not more or less. That's way too much weight for those straps to hold. But since those land cruisers were both palletized and strapped down, they shouldn't have to worry too much.