Why Are We Not Funding this?!
Who says we're not? Looking up the topic a little bit (without necessarily watching the video) it looks like it's being worked on by Dr. Jörg Gerlach of the University of Pittsburgh’s McGowan Institute for Regenerative Medicine
[1] and I can find publications from them
[2] [3] which were funded in part by the National Institutes of Health. So, the reason we're not funding this is because we're funding this.