Indeed! The study was a self selected group who had made the transition successfully retrospectively reporting on the injuries they got.....
Having said that, if you look at the table, the specific injuries are consistent with what I am seeing and what you would expect to see as a result of the specific joints moments that are increased in barefoot running/forefoot striking.
I still find it hard to believe that there are some runners that are still that dumb. maybe there needs to be an IQ test before being allowed to run in minimalist shoes
Injuries observed in a prospective transition from traditional to minimalist footwear: correlation of high impact transient forces and lower injury severity
Matthew J Salzler, Hollie J Kirwan, Donna M Scarborough, James T Walker, Anthony J Guarino & Eric M Berkson The Physician and Sportsmedicine; 21 September