Buoy, I have to ask, based on your comments, have you read the entire book? They seem on the surface based more on what you've heard others say about the book. And as for  shod runners being "destined for injury", well,  destined might be strong as it is not 100%  but the numbers mentioned in the book can be verified in about 30 seconds of google hunting. a VERY small percentage of runners escape injury.  Period.  Your odds of suffering an injury are very, very high.  Not 100% so maybe everyone  can hope they are the aberation.  The percentage of barefoot runners injured is less.  However, admittedly, the numbers of documented barefoot runners are very small and can skew the statistics.

As for  McDougall or Barefoot ted not running "True" barefoot, that is true,  just like the Tarahumara in the book.  But they wear VERY minimalist footwear. No cushion, no motion control, not toe curl or contraint of the foot in any way. Basically a thin strip of ruber to protect the skin from glass and sharp stones etc.  It can not, in ANY way, be used to  question their  beleifs in the benefit of barefoot foot strike.  That tiny strip of ruber does nothing to  dimish their beleif in the benefit of allowing the foot to flex and spread and stretch naturally.

I