I think it is always a good idea for civilian airliners to ID themselves to anyone who queries them, just for the sake of safety
That’s why this isn’t much of a story on the civilian air side. Every commercial IFR flight from here to anywhere is going to file an international flight plan which the Chicoms can read as easy as anyone. The statement allegedly from Japan saying don’t file a flight plan is pretty non-sensical and I guess I don’t even believe that part. Time for a BS flag——wwwhhhheeeeee-—there it goes.