My PR background tells me that this is a weighed decision - Condemning Kazakhstan will yield a considerable amount of media attention with very little opportunity cost. Whereas doing the same to China would get you fired as a PR professional.
Kazakhstan population 15 million, GDP 179.3 billion USD
China population 1393 million, GDP 14,342.90 billion USD
You might be onto something here.
If the Kazakh government implements the same control methods China has implemented, big tech companies will use the same excuses to remain at a distance. Local competitors will recreate any service that's not available on the Kazakhnet in the same way China has a local competitor for every type of social media or any app in general.