Getting Mac Model Identifiers using Command Line and ARD

I remember a few years ago ARD used to tell me the Mac Model Indentifier e.g. iMac12 ,2

Apparently not any more. I found this forum where they've found a command line argument which prints it:

system_profiler SPHardwareDataType | grep "Model Identifier" | awk '{ print $3; }'

This worked, although the machines needed to be switched on to find it. I wonder why Apple never kept this feature in ARD?