Ah, I was under the impression that they've officially moved it out of the 'beta' naming
wtf are you complaining for? You don't like flash and they are removing it.
ubnt has a habit of not finishing what they start. AirControl 2 is not finished and they're talking about Aircontrol 3. Airvision has been rewritten 3 times in 3 years.
For all I know they're doing Unifi 5 in pure flash. I wouldn't be surprised.