Without getting into the huge differences between having family members in pro wrestling and having family members in the army, I think you're kind of missing KS's point.
The report says she has the look, but "lacked the grasp of the pro wrestling industry"...how many current and former divas can you honestly say had a "grasp" on the pro wrestling industry? Probably less than a dozen. More than half of the women used in WWE are eye candy. Sure there are those who are great wrestlers, or otherwise have great entertainment value, but obviously, most important are the looks. Considering that she reportedly did have the looks, and what I would assume would be at least a general knowledge of the pro wrestling industry, I find it much harder to believe that the deal fell through because she didn't have a "grasp" of wrestling. To me, it's much more likely that she just didn't want to deal with WWE. Seeing that the Von Erichs used to be competition for McMahon, a Von Erich not wanting to be in WWE makes perfect sense, but a Von Erich not having a grasp of the pro wrestling industry sounds like quite a stretch, especially considering that that perception must have come from someone within WWE.