That IEEE article is written in language that the average consumer can understand. Unfortunately, the consumer does not willingly spend money for a good flashlight, other than Mag-Lite. They are thoroughly programmed to buy (ad Nauseum) cheap and unreliable flashlights. It quits working: throw it out and buy another cheap and unreliable flashlight. The Mag-Lite was not intended for the consumer: emergency services and military only. The minimag was their original consumer offering.
There is a growing interest in lights that are better than Mag-Lite (including LED), just as there is a growing interest in Linux.
What is the point to mass marketing a flashlight that doesn't need bulbs all the time and lasts for many years?? Unless Meijer changed, you had to go looking in the sporting goods dept. to find the Mags, as the other lights (the cheap ones) are in the flashlight isle.