and many white flowers are deliciously scented maybe to attract night
pollinators who are guided by smell rather than eyesight BRBR

Perfectly true, but that is not what he meant. The night-blooming white
species, like Angraecums, are always white. He was asking about species which
normally have colored flowers, but sometimes turn up or are bred with white
flowers. These will not smell any different than their normal colored siblings.
Iris,
Central NY, Zone 5a, Sunset Zone 40
"If we see light at the end of the tunnel, It's the light of the oncoming
train."
Robert Lowell (1917-1977)