The article isn't a lot better. Some whining about "it could have been USB-C" (I'm pretty sure it couldn't and that the whole point of the external battery pack is that most of the power management for the individual components is happening on the battery to save weight on the headset), some whining that it's insane to plug that box into another battery, very little of substance.
It’s not even something you need to plug or unplug, it’s supposed to be more or less permanently attached to the battery. You need to use a special tool to unplug it.