I saw a couple of people clearly guessing something along these lines but none of them seemed to be claiming that it was actually happening, more like “isn’t it convenient that…”
The timing was uncanny. I still don't see a reason why it couldn't have been an intrusion/rogue employee? Like someone had access to a system to push router firmware updates or something?
A rogue employee would have been very easy to detect and that employee would have known this. The core network infrastructure involved is extremely sensitive and is quite unlikely to be accessible in a break in.
Also IIRC an employee was posting on Reddit saying the incident started shortly after a network update was posted this morning.
When you know more about the tech and systems involved a mistake seems infinitely more likely than sabotage.