One of the reasons why I bike to work every day is to get some DIRECT light from the sun. Many kinds of research have shown the positive sides of it.
If I live in a hotter (and humid?) place, i.e., middle-east or SEA, I would love the idea. But, to have that in a colder place, i.e., nordic, I'll make sure to pick other routes without the shades. :-)
If the top image of the article is real, then I guess illumination would'nt be a major problem, especially in the morning and evening when the sun is low.
As the summer period is finally here, the sun rises super early in the morning and sets late, around 8/9 pm. That is already outside my commuting schedule, if I may argue. :-)
If I live in a hotter (and humid?) place, i.e., middle-east or SEA, I would love the idea. But, to have that in a colder place, i.e., nordic, I'll make sure to pick other routes without the shades. :-)