It's coincidental: the first widespread reports of this were from Hollywood editing shops: https://variety.com/2019/digital/news/avid-mac-pro-corrupted.... This lead to the initial presumption that it was a being caused by a bug in AVID.

The reason the AVID community popped it first seems to come down to the fact that this is their busy season, so a lot of their machines were active last night as this Keystone update was rolling out, editors for whatever reason (technical issues or superstition) reboot their workstations fairly often, and, crucially, a lot of editing workstations are using third-party GPUs that require them to disable SIP (whether this is particular to AVID or just an intrinsic property of using the Mac Pros with third-party GPUs, I don't know).