At that time, it was pointed out there was a risk that some Koreans might cheat on their tax payment by taking advantage of the tax exemption privilege given to kokyowa, and that expectation came true afterward.
またその際、恒居倭の免税特権を悪用した朝鮮人の納税回避の危険性が指摘されるが、後にその危惧は現実の物となる。