If asians count for diversity, there is no lack of diversity of tech companies.
This statement doesn't really make sense. By definition, no one group (or two for that matter) can "count for diversity", as "diversity" is the absence of such clustering.
The article implies that the lack of diversity, coupled with the fact that the CTO who is leaving could lower employee morale.
I don't know how else to parse that statement. If absence of such clustering is the meaning of "diversity", why would the departure of an ethnic CTO cause lowered morale?
