My experience is similar to Haertig's. Long time volunteer in Mountain Search and Rescue (470+ ops) and career NPS. Never had to use a tourniquet. Bleeding always stopped w/ direct pressure - I don't even specifically recall using a pressure point..

Most of our trauma involved fractures, etc. as the result of falls, also the leading cause of fatalities (often booze was a factor). There were occasions where victims perished before we , or anybody else, could reach them. Exsanguination may have been a cause or contributing factor.

I suspect that battlefield wounds are more likely to require T use, compared to typical civilian environments.

I have added T's to my FAK. At worst, it is yet another bandage. To be most effective, a T should be applied properly and promptly. Either the injured individual or companions is likely to be more helpful than the late arriving rescuer.