Its not so much about the aircraft capability per se - its about the relevance of that platform to their doctrine.Avic Promotes J-31 As An Export Fighter
This is a bit surprising if true, that the Chinese are not interested in acquiring the J-31 but will stick with the J-10 as a complement to the J-20. It makes one wonder why China would not want to field a pair of all-stealth 5Gen fighters ala F-22/F-35.
Today is not tomorrow