I think "BIPOC" is designed to be able to exclude or include asians selectively depending on political needs. They want Asians to identify their interests with those of other non-whites, and in opposition to conservative whites. In that context, Asians are "BIPOC." But when it comes to preferential treatment amongst different non-whites, for jobs or admissions, then Asians are in the second-tier of "POC" not the first tier of "BI."