Really interesting video; I'm very out of the loop on the TCCC stuff.
Synthetic blood substitutes have been looked at for many years and would clearly be a game changer for some battlefield patients, but many casualties would still require early damage control surgery which realistically will never be available on a consistent basis without evac. There just aren't nearly enough trauma surgeons to embed at the platoon or even company level. I have serious doubts about the utility or practicality of automated nerve block devices on the battlefield - it seems to me that updated pharmacologic approaches to pain management are far more practical and versatile in the field.