Correct.  DeltaForce (hydraulic downforce) was the step up from AirForce and vDrive (electric drives) was the step up from Rowflow in 2014.  Not to say these aren't still good, economical systems but they're getting outdated.

There probably haven't been a lot of rowflow systems and even less airforce systems sold the last 3-5 years and I'm guessing the benefit to adding support for airforce and rowflow to the gen3 was not economical from an engineering prospective when they were designing the gen3.