Technically Arnold did have a wide waist (for a bodybuilder) at about 35' in shape. This was offset by his gigantic chest, back, shoulders and know how with regard to posing to his strengths. Many of Arnold's poses were off center or while twisting the body to hid this "flaw". All and all, minor since no one (even champion BB's) are perfect. Before you call me crazy, Arnold wide waist is relative and being looked at in a bodybuilder vacuum, I get that.
I hear what you are saying but Craig is not that large, and his waist aint 30 inches. Looks like your average serious gym goer with above average genetics. About a 42 inch chest likely a 32-33 inch waist.
Comparing him to Arnold is insane. Arnold hade a 58 inch chest and 20 inch arms (in shape). His overarm was well over 60 inches.