I just reviewed four separate articles quoting that warning.  It appears that Blue-Rich LEDs are bad. 

The "women breast cancer" allegation was not in their warning, however.  Apparently Mr. Lueck needs to update his presentation to match modern scientific opinion/thought/analysis/conclusions.  (Pick the one you prefer.)

http://www.rawstory.com/2016/06/american-medical-association-warns-of-health-and-safety-problems-from-led-streetlights/