What is the reason behin Nissan still having CHAdeMO ports after CCS became the standard?

Obviously both are now basically being discontinued with NACS being rolled out on vehicles soon, but it really just boggles me that the 2025 still has CHAdeMO. Is it still popular in Japan so they see no need to change the port for other regions? I can't think of why a manufacturer would do that knowing that the specific charging standard was basically dead, at least in NA.