And neither of those would stop Junctional hemorrhaging.
This is basicly a portable Mass Trousers, without the bulk and weight. These type of injuries are more common in IED, blast, collision, and fall accident's then anything else. One pound might be be alot for a ground pounder to carry around all the time, but I could see these being put into every vehicle with ease. SOP will dicate if a medic would carry one. Personally I wouldn't, but all the times we've been attacked while ground pounding was from direct fire engagements.