Do a lot of the ORA raised SPS acros not require as much light as other acros?
No, but not all acros needs the same amount of light since they all don't live at the same water depth. ORA corals are grown in a greenhouse using natural sunlight and supplemented by metal halides. They, naturally, originated in the ocean on a reef somewhere, but have been raised in aquariums so they are usually more forgiving than corals fresh off the reef.
The Echinata is a deeper water SPS
and doesn't need quite as much light as some others. It should do fine in your system