I would disagree with only one point: his strategy is, actually, ancient wisdom.
All successful counter-insurgencies have adopted either that strategy or one of total destruction (but let us ignore those)
i don't think too many countries are focused on counter insurgency in terms of military training , most are still training for conventional warfare .
I anticipate that future wars would be assymetrical in nature and that is where we as a nation would find what the General has laid out in his manual invaluable.
I know NATO has been dealing with insurgencies for quite some time but I don't think they could have been successful as Peatreaus has with Iraq.
The teaching of succesful counter insurgency strategies has been institutionalized in all large empires.
The British did this with the "playing fields of Eton", for instance (I was trying to look up a link to that, but could not find one at short notice, sorry). Before that, you can go all the way back to Sun Tzu and his Art of War.
