I'd like to add this tid bit....
The Quickclot itself can be dangerous, especially when used when it is most needed...in deep wounds that are heavily bleeding. I'm going from memory on this one....the reason is that the clotting agent itself can find its way into the blood stream then travel elsewhere in the body (brain, lung or heart) and cause a deadly clot. If the patient is in a hospital setting, there is a chance of busting the clot with I.V. medication. However, in the field, in a survival situation, without the proper medication, or I.V. to administer it, this condition will likely end in rapid death.
A possible tactical use of a clotting agent...I could see using it for mild to moderate wounds, in the situation where one is being actively pursued by an enemy force and does not wish to leave a blood trail, and does not have time to properly bandage and/or wait for the bleeding to stop on its own. This use will probably not be found in any textbook, but is situation specific and may come in handy in the real world.