Whoever expects a medium-term plan to turn AIR into the next Unity, forget it.
The objective of Harman is to continue developing the SDK, not to make it the next technology to destroy the rest of the technologies on the market.
Google, Adobe (for the type of products they want), Apple, Microsoft ... are companies with resources capable of creating complete "Unity's". The Harman division developed by AIR is a "small" company (its not "Samsung"). The same can not be demanded from them.
Creating a "Unity" from scratch, it's an immense job. Years and years to get where they are (editor and language status, marketplace, extensions, etc). In addition to this, I believe that the Unity company has had great luck at the moment with the decision of Adobe to leave Flash aside from 2011 ... It's not just that they have invested in that technology. Everything has been perfect in time for them.
If Adobe had supported Flash the right way (2d and 3d at that time with a lot of potential) right now Unity probably tended to have a niche market, because Flash would also approach 3D to a very advanced state (editors, frameworks, etc).
So it's not just a matter of investing a lot of money in a technology. You have to have some luck in the market.
What Harman is doing is the right thing to do. They are adequate plans for a medium term (1 - 2 years).
I always say that you have to be realistic, and if someone do not like where AIR is heading, change technology (and do not waste more time in AIR forums, because it does not make sense ...)