two issues with this feature.
- light bulbs are not as much "digital" than LEDs - really?.. where do you get your definitions of "digital"?
Digital .. as in digital electronics.. "on" or "off", "one" or "zero", binary (two states) at the fundamental level... changing colors/ brightness for both technologies has similar levels of complexity... "digital" has nothing to do with this complexity.
Might as well reference the use of AC or DC power in making these distinctions.
Second issue: You indicated the power savings cited being significantly different that normally referenced between LEDs and Incandescent lighting. And, indeed, some of the reasons could be the ones mentioned. But for all I know.. the bridge could have been converted to using CFLs 5 years ago ("static bulbs"?).. with the resulting improvement energy efficiency being from the change from CFLs to LEDs .. as less significant improvement.
Please a bit more accuracy.. in "click bait" title, and content.