Because the Japanese made the same "racist" assumption the US americans did in outsourcing to Japan: "Those foreign bastards are technologically less developed, so must be stupid, and never able to actually do anything with our precious technology."
"Racist" is not exactly the correct term here. "Colonial mindset" would be more accurate, since the US uses economic colonialism rather than the more physical old-style colonialism of pre-WW II europe. Nevertheless the mistake is the same... The perceived inferiority of the colonies precludes the very realisation that those colonies might actually learn something, adapt it for their own purposes, and gods forbit, bite back.
It's only a matter of time before the asians will start complaining that the africans have nicked their Preciouses, and use them to make things cheaper, infringing on.... If the idorts on the african continent ever stop bashing each others' heads in over trivialities the world in general is going to be in for a rather big surprise..