Tesla's setup are a bunch of desks with steering wheels crammed together in a normal call center [0]. Waymo doesn't do teleoperation, but other companies exist that have like Vay. Compare their setup [1].
Given that some of these teleoperators are in the Philipines, and Tesla's sterling reputation for adhering to regulation and laws, I'm going to hazard my own guess.
Why the blatant lies tho? Waymo people are in Philipines. And when power went out in SF entire Waymo fleet died too because teleops couldn't take over...
Waymo absolutely does NOT do teleoperation in the sense that a remote driver is directly controlling steering, braking, and acceleration. Instead they at most route the car. The self-driver is directly controlling the car at all times.
"In the most ambiguous situations, the Waymo Driver takes the lead, initiating requests through fleet response to optimize the driving path. Fleet response can influence the Waymo Driver's path, whether indirectly through indicating lane closures, explicitly requesting the AV use a particular lane, or, in the most complex scenarios, explicitly proposing a path for the vehicle to consider. The Waymo Driver evaluates the input from fleet response and independently remains in control of driving. This collaboration enhances the rider experience by efficiently guiding them to their destinations.
The Waymo Driver prioritizes the safest course of action in a given moment. In some situations, even with inputs from fleet response, the Waymo driver may come to a stop if it determines that is the safest course of action. Once the car comes to a stop, it can autonomously resume operations, and in other instances, it may require additional support from Waymo Roadside Assistance to retrieve the vehicle manually. "
The second paragraph of your link says Waymo does not do teleoperation.
"Much like phone-a-friend, when the Waymo vehicle encounters a particular situation on the road, the autonomous driver can reach out to a human fleet response agent for additional information to contextualize its environment. The Waymo Driver does not rely solely on the inputs it receives from the fleet response agent and it is in control of the vehicle at all times."
This is different from a remote operator directly controlling accelerator, steering, and brakes.
That's not teleoperation. Teleoperation has a human directly in the control loop, so latency and stability of the connection directly impacts the vehicle system's ability to maintain safety, because the input has to go vehicle<->network<->human to produce an output.
What those blog posts are talking about is a different strategy called remote assistance where the vehicle remains the only thing in the control loop, but a human provides guidance to help the computer navigate itself. This makes the latency and stability of the connection much less important for maintaining safety.
It's not unheard of for companies in the industry that use remote assistance to also have an local option for remote control (for things like lot operations and vehicle rescue events), but that's not part of routine on-road operations and it's usually limited to a <5mph limp mode where the operator is physically present.
[0] https://pbs.twimg.com/media/GuE3ie2WcAAyeWs?format=jpg&name=...
[1] https://imageio.forbes.com/specials-images/imageserve/6828f0...