HitIQ IPO, page-18

Been watching this for some time.
Have been watching about 5 - 6 of their competitors doing the exact same thing in the USA. All been touting the same tech but no traction. I am interested as to why?

I have spoken to some athletes who said they will refuse to wear a mouthguard and that a few clubs (NRL and AFL) doctors have said the technology as a 'monitor' is not verified and just detects G force.

Also watching a company called Eyeguide out of Austin, TX. Not only monitoring concussions but the effects of it.

Does anyone actually understand the technology and why athletes don't want a bar of it?