Because it begs the question of why the outcomes are different, and hence challenge some narratives concerning systematic racism e.g a lot of those narratives p

Because it begs the question of why the outcomes are different, and hence challenge some narratives concerning systematic racism e.g a lot of those narratives put the outcomes on factor external to those communities i.e. "the system" - but Asians are in the same system, and have/had a similar relationship to it.