I looked through your links. I don’t see anywhere that SMS can be read.
From the link, emphasis mine. SMC is the MDM in question
Read SMS or MMS
Allows an application to read SMS messages stored on your device or SIM card.
Malicious applications may read your confidential messages.
SMC usage:
Read the initial configuration and further server notifications. 2. Read all SMS for Backup.
From the link, emphasis mine. SMC is the MDM in question
2. Read all SMS for Backup.
deleted by creator
…why would they need to backup all SMS messages for a filtering option? That just plain does not compute.
deleted by creator