Hmm, our Taiwan region (asia-east1) is too far? We've had a number of customers from India, and thanks to our points-of-presence throughout the world it's not so simple as "AWS is in Singapore, Google is in Taiwan". That said, we hear you, and you can imagine we've done a lot of asking customers (and losing deals!) on the basis of where we are and where we could be.
Yes, Taiwan is too far. I personally know of an adtech startup that is going through contortions because they need to stay below latency limits on specific ad exchanges and those exchanges are located in Singapore. Taiwan is certainly way to far for them.
There are other instances where I think additional ~50ms latency diff to from India to Taiwan matters much less and I am dubious if it is material. But what matters if that the difference exists and people believe it does matter.
We're squeezing by in Taiwan just about, if anything changes networking wise though we're going to have to diversify to more providers.
If you're struggling to respond within 50ms anyway then you're going to have a bad time with the added latency. Thankfully our 95th percentile is around 20ms.
We are however having to go into AWS for Aus/NZ which is a pain.
AWS is coming to Mumbai(IN) in near future. It will make it give much better performance for us so right now investing time in GCE is difficult to justify.
Disclosure: I work on Compute Engine.