I had a PM conversation with a guy in reef2reef that has had great success with them over the course of a few years growing an SPS tank from frags. The take away from that conversation was treat them almost like you would t5. Just cover the top with them. 4 on a 4 foot tank, 6 on a 6 foot. That particular guy was running them with a light diffuser and I think lenses removed as well.
Alot of that info seems to be in line with the BRS findings. The power/par is there. Spread and blending is the issue, and that seems to be true across nearly any LED light system.
Keep in mind I have zero experience with LED still doing halides and t5, but the above is the result of way more time researching than I'd care to talk about.