We (the US) require 100% forced re-screening for international transit passengers and set plenty of standards other countries' airport security must meet in order to be permitted to send flights here. Presumably the reverse is true even if others are less obnoxious then the TSA in the requirements they set.
But nothing in this thread even says that Asian countries have stated any objections to PreCheck. So, are you presuming all four of these things? (1) that Japan, Korea, etc. which require re-screening, all set strict requirements on pax arriving from the US, (2) they have all determined that PreCheck screening does not meet those requirements, and (3) they are disallowing PreCheck for pax bound to Japan/Korea/etc., and (4) thus, the TSA announcement authorising PreCheck for int'l pax does not apply to pax going to Asia?
That's a lot to presume based on no offical statements or other evidence...