That's not for me to find out or even care about, it's for you to get the correct reference so you may chase the progress.
It would seem the fault and fault reference you have been chasing for months has been resolved since there have been 5 code updates to the Moto kit
Moto maybe doing some analysis, though you can be sure that since the 'BSR fault' is so limited that investigation into local network would also be done. With that said, its not correct to call this a BRS fault since the root cause has not been discovered.