He just lists two failed smart helmet startups, then talks about a successful smart helmet that doesn't use a full HUD but uses an LED light bar. The only actual point he makes is that it's hard to make a display that's visible in the sun.
It's also a motor cycle channel so he makes points like "why not use your mirrors or built in dash" which is not really applicable to cyclists, eskaters, EUC users, etc.
Fair reasoning but I still think Ryan is in the right path.
He is right that shoving a holographic display and the computer bits in the helmet either makes it bulky, heavy, and useless or you'd be paying up the wazoo for what is an engineering exercise.
A simpler interface that solves current problems in my opinion would be much better than trying to make an Ironman helmet.