Even believing all of the results (and they do look real), the applicability to RV's isn't really there unless you are going to fly very high.
The big 30% Max L/D improvement is great, but its MAX L/D which you care little about when you're trying to go fast. When we're flying an RV as fast as we can, the wing is already flying with good clean airflow over most if not all of the wing. There's no problem for the deturbulators to fix.
Take a look at page 9 of the
AIAA Report. The deturbulated wing does great at low airspeed, but the lines cross around 85 knots CAS. Above that the deturbulators are creating drag.
Now if you climb really high, Max L/D will occur at a higher airpeed where you might be able to take advantage of the technology at higher speeds, but you lose HP faster with a normally aspirated piston engine.