I like many users have auto update turned on. I expect the app developers to test the update on their iphones and not in a simulator. I don't think anyone from hue actually has and uses the hue lights.
Spend enough time working for a technology product company and you'll realize that it has nothing to do with whether or not these people use their own products. Likely, the people closest to the product are using newer software than is available to the public, newer lights, different methods of accessing those lights, etc.