That’s a historian’s argument.After giving it some thought I've come to the conclusion that it is a good thing that the J-10B managed to upstage the J-20 at this year's Zhuhai. Military fans have been ignoring the J-10 series ever since the J-20 came out and once they put TVC engines on the J-20 or J-31, no one will care about the 4th gens any more. This is J-10's last hurrah before more advanced fighters supplant it.