Removal of unwanted DAG networks

Hi,
Running this cmdlet
Set-DatabaseAvailabilityGroupNetwork -Identity DAG2\DAGNetwork02 -ReplicationEnabled:$false -IgnoreNetwork:$true

Shouldn't the expected behaviour be to remove the "DAG2\DAGNetwork02" from the available networks? 
When running the command against Exchange 2010 SP1 oth the console and the shell continue to display this network as available with just the replication disabled. 

Thanks,

Dave