Physics. Have you ever played a competitive/reaction based video game with high ping? It is very, very hard. And it’s a game, where there are many tricks to hide latency from you.
Cloud console shows pings between Google data centers in us-west and ones that are in proximity of Philippines around 160-200ms. Then you also have inherent lag of wireless connection itself. Then you have also connectivity from google’s data center to Philippines.
If you want remote driving in uncontrolled environment, you reasonably can expect only the same city/county operators.
I’m obviously uninformed, but I’d expect the remote operators job (from another country) to be like “car is safe to proceed, based on that picture that I see” or, in the worst case scenario, put some waypoints in the ui and let car drive on its own.