Well. I have a camera.
Their solution requires me to buy glasses. As a person wearing corrective glasses. The inconvenience of turning on a camera vs putting on (however cool-looking) glasses over my glasses, is an easy choice.
So it seems like you already had an answer to your question before posting; why ask how they compare?
There might be some interesting factors that affect quality and convenience. GP already mentioned corrective glasses, then there are probably many more things to consider, like low-light environments, having a full beard, etc.
The choice of technology being used (camera VS radar) might have various trade-offs, and it's worthwhile to discuss them.
EDIT: Granted, GP could've asked in a less dismissive way.
My question was - why solve the problem using glasses (that cost money) and not solve it using software and something everyone had. Is it not a valid question?