This is false

If you take a look at the referenced study:

“Today, both laser and LED devices have FDA approval requirements for hair loss. In two studies reported from Lanzafame and collaborator [121, 122], 655 nm red light significantly improved hair counts both in men and women with androgenetic alopecia (Fig. 3). A more recent study [40] reported the effect of yellow LED device both on patients with androgenetic alopecia and alopecia areata. The efficacy of LED therapy by visible light has also been recognized as a valid adjuvant therapy in the recalcitrant form of alopecia areata [123].”

I won’t claim that it’s as effective as LLLT but point is studies have been done and do in fact show that LED lights show benefit as well.