Don't accept "no" as your default to light needs of seeds. From that same article you linked:
"The basic foundational needs of growing are light, water, and soil. These three contribute to photosynthesis. Degrees of these essential elements are required, but sometimes sunlight or light, in general, is not necessary to sprout seeds. Sometimes sun inhibits seeds that germinate in darkness.
Some seeds don’t need light to break through their seed casings and sprout. Most seeds germinate best with controlled amounts of UV generation, but there are seeds that germinate in the absence of light.
Furthermore, there are plants that get enough just light in highly shady areas of a garden or even in darkness."
While it's true that some seeds will sprout without light, there are many that require varying degrees of light to sprout.
Note: I intend this as informational, not argumentative nor to negate you.
I guess it won't hurt but I don't think they need it. You can do whatever. I like your set up. I use artificial lights so I can hover the lights right above the sprouts.
And that, while sad, is exciting!
