Apple Support Document
There's something odd going on here - on that support page, they infer that the packet capturing interface is innocent and secure and what-have-you. They then link to a developer page that has the following text in the iOS section:
"iOS Packet Tracing
iOS does not support packet tracing directly. However, if you're developing for iOS you can take a packet trace of your app in a number of different ways:
If the problem you're trying to debug occurs on Wi-Fi, you can put your iOS device on a test Wi-Fi network. See Wi-Fi Capture for details.
If your app uses HTTP, you can configure your iOS device to use a debugging HTTP proxy (such as Charles HTTP Proxy).
In iOS 5 and later you can use the remote virtual interface facility."
Which makes no mention of this innocent, secure feature.
Are they trying to retcon something here? Or am I just being paranoid?