According to the group's web site, corals grow three to five times faster under these conditions and stand a better chance of surviving stressful events such as increases in water temperature.
and
In interviews this week, Dodge and McManus repeated their view that the system could help young corals establish themselves and grow faster but has not been subjected to rigorous study, with no evidence that the increased growth rates last beyond the first few months. Neither said they opposed the project.
these comments say it all for me
it may work, it may not, but at a price tag of $65,000 (seems low cost to me), why not try it?
especially since the payoff could be huge