I don't know why you're being downvoted for that; your interpretation, while uncharitable, is still most likely the correct one, given Apple's history.

Not to mention the games market for the iOS App Store is very saturated and most of the money has likely been sucked out of it for the time being, so now Apple finds they don't have much to lose by allowing the possibility of OpenGL-based games for iOS which bypass the App Store.

In case anyone is quick doubt or dismiss the above criticism, just recall that for years Apple's iAd framework officially supported WebGL, but Safari and UIWebView did not. This implies that Apple could have released WebGL support in Safari and/or UIWebView any time they wanted; they simply chose not to for for non-technical (i.e., business) reasons.