Depends on whether you mainly listen with the lights on or dark. If you listen with the lights on, blue LEDs are unlikely to bother you. If you listen in a darkened room, some blue LEDs can be bright enough to border on discomfort. It even has a term, discomfort glare. Blue light is the actual color that is primarily responsible for discomfort glare.
Most people are not inclined to take apart a piece of expensive equipment, to find a diode possibly buried on a static sensitive control board, desolder it (if they have the tools, could be SMT even), and then replace it, hoping all goes well.
Let's not forget that blue also suppresses melatonin causing higher alertness when you are perhaps targeting a more relaxed state.
Most people are not inclined to take apart a piece of expensive equipment, to find a diode possibly buried on a static sensitive control board, desolder it (if they have the tools, could be SMT even), and then replace it, hoping all goes well.
Let's not forget that blue also suppresses melatonin causing higher alertness when you are perhaps targeting a more relaxed state.