Maybe I look at this wrong, but why would any one want lights at had limitations on what would be healthy under them? There is a lot more to growing corals than just growing zooxenthellae, which can also be achieved by raising nutrients but leaves sps a nice brown color. The coloration of sps depends on a balance of the zooxanthellae and light and nutrients, not just the wavelength of light, many people have noticed a change in sps coloration under LEDs, and that doesn't seem like a good trade off. I have found no limitations under my halides or the T5's I have used before. There are LED fixtures that employ other colors and so far appear to not have that color change issue, and if you look at the spectrums listed under that Reef led lights article, they do not match up to the halides that are shown, and those halides have had no troubles growing any corals. Claiming that they are using some, but with peaks that are different doesn't really help much.
LED will be the future of the hobby, but I have not seen any fixture yet to make me give up what works, I have faith that it will happen, but LED for a reef setup is still a work in progress, and not a solid replacement yet. Limiting the spectrum to blue and white is not a success if you are limited to what will be healthy and retain its color. Maybe I just look at it wrong, but I don't want my light to be the limiting factor for success or have to make excuses for why I can't keep certain corals.
