Shopify has invested heavily in their sharding setup so that it can be handle high load and scale quickly. e.g., flash sales where baseline traffic will 3x in a matter of seconds. See the discussion of pods:

Your parent is using Taobao ( Which is like the Amazon in China ) as example. Which means the word "scale" means completely different thing. I am willing to bet Taobao's RPS on singles day is a lot higher than the highest RPM during Shopify's biggest flash sales.

That said there is no reason to believe that pod in shopify cant handle that scale.