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.