Mediaserver
I'm not sure, this problem seems different to those highlighted in the link you've posted. This seems to be due to a process called qcamera2factory that is causing mediaserver to run continuously.
Though as you say Motorola might not be the cause of the problem, highlighting the issue to them is both easy and potentially may result in a fix.
As this isn't a Motorola problem, I doubt this will help Read here:
I'm not sure, this problem seems different to those highlighted in the link you've posted. This seems to be due to a process called qcamera2factory that is causing mediaserver to run continuously.
Though as you say Motorola might not be the cause of the problem, highlighting the issue to them is both easy and potentially may result in a fix.