This lone “data point” has had multiple personal experiences with fried/scorched CFLs that fail scarily. No fires, but they wouldn’t surprise me a bit. Fluorescents’ actual failure rate (among dozens in my home) is extraordinarily high compared to the promised lamp life.
They really stink.
At least half of the twisty bulbs I’ve used, get a toasty brown base when they die, and many smoke or fill the area with a burnt odor.
I wonder if a dirty little secret is that they are not rated past 120 volts. When it’s common today to get household voltages up to 130 in newer neighborhoods where the power distribution has been upgraded for all the McMansions that were expected.