They are talking about the CFL bulbs (compact florescent), which have that cool colored industrial look lighting. Like all their examples, it is a grain of truth spun into ridiculousness. Most of the development of CFLs was in the 1970s because of the energy crisis. In the 1990s, they were promoted for use by the government and power companies, with rebates and other subsidies. The government didn’t start banning incandescents until 2012, after warm light LEDs had been around for a long time.