Thanks for the comment and kind words.
I don't agree that it's a "cop out," rather than a simple fact of the matter. Business strategy is the focal point of most executives classical training, education and experience. They are essetically groomed at the collegiate and corporate levels to understand strategy and make decisions (in most cases) assuming the went to b-school and climbed the "corporate ladder," as most have.
Conversely, although social media has exsisted since the outset of the Internet (remember listservs and bulletin boards in the 90s?) the current generation of enterprise CEOs were largely not "raised" or trained in social media. Most adopt it based on their comfort levels with technology and, hence, their personalities.
I agree that gaps in this skill should be addressed, but in many cases it simply is not a priority to C-level executives given their lack of interest or a lack of perceived value in what social is combined with the demands of their roles. Plus, social can pose an incredible risk to the enteprise on both and outbound and in-bound level.
My point is that the deveopment of a "Social CEO" is a case-by-case situation depending on the individual and often the corporation rather than the one-size-fits-all and "every CEO needs to tweet" answer many are trying to fit into the debate.