This is true, but it still costs you 300 dollars a year, uses the same mechanisms the market uses (no loose .ipas) and you have to give lots of trackable info to Apple (company info, devices, apps, update/use metrics). It's all centralized too, so if they change their policy (like go back to the >500 employee rule) or don't like an app you're sharing, you might be in trouble. If Windows can eventually swing even this with their marketplace, I think they'd be ecstatic.
At least companies apparently can create their own appstore for their custom apps: https://developer.apple.com/programs/enterprise/