The original issue is proposing letting the user assign the debug service to a specific interface, one of which would presumably be loopback. This article is about the proposal from a developer that it should only ever be assigned to wlan0, which would break a lot of apps.

Letting applications bypass permissions with this feature is the exact usecase they don't want to lose. If anything, I don't see them being against the original proposal possibly restricting non-loopback access, which would enhance security.