That doesn't say anything about the red top. Is it red because the filters used to be red? That story also claims the brand is named after Earl of Marlborough, but Wikipedia states "The name was taken from a street in London where Philip Morris's British factory was located" (street was indeed named after Churchill's relative, but John Churchill, not Earl)

I think what you were trying to say is that filtered cigarettes used to be marketed to women, but were rebranded to be marketed to men after research showed that smoking causes lung cancer (under the pretense that filtered cigarettes are healthier).