Apple has certainly back-pedaled on App Store guidelines before. Lately they seem to start with the most restrictive set of guidelines to set a precedent and then ease things as they see fit. It's always easier to start strict and then relax over time, than it is to go the other way. Especially when the topic is programming languages/frameworks where over time a large code base can be built up.

Perhaps now that Java will not be considered deprecated from the platform, it will be allowed for us in App Store applications.