誰の事？w

引用されて無い事を話すのであれば、
M-346 も第５世代機の練習機として
使えると米国も評価してる

https://militaryleak.com/2023/02/18/polish-air-force-signs-support-deal-for-leonardo-m-346-beilik-jet-trainers/
Poland’s M-346 “Bielik” system has been certified by the U.S. Air Force for the training of fourth and fifth generation fighter pilots, an important milestone that has enabled Poland to train many of its students at home rather than abroad.
FA-50PL に関してはどうなるんだろうね