Why does MySensors setup both a Node device and Temperature device in Vera?

[TroyF]

As I am beginning my journey with MySensors, I wondered if anyone could explain to me what the design decision was around having two separate devices created in Vera for each sensor? In my case adding a temperature sensor created two devices, a 'Node' device and a 'Temperature' device. I'm just curious to understand why these needed to be created as two separate devices instead of one combined device?

Thanks,
Troy.

[hek]

@TroyF

The node device contains the information related to the Arduino-node such as battery level, library version and in the case of relaying nodes a clear button for relay information. On vera you cannot modify or add information to the standard devices.