Today, a quarter of all broadband lines on the planet are managed by TR-069 and its management of devices has been expanded in line with changes in the type of devices needing to be managed (many devices can be managed from gateways to VoIP devices to set-top boxes). And the complexity you now see in the connected home environment in terms of technology (and the protocols used) is just not an issue for the continually evolving TR-069, as non-TR-069 devices can be proxy managed.
via TR-069: Still Sexy After All These Years | Light Reading.