I also do not put too much stock into these rumours (and even if they are true, RoE and exercise parameters are always unknowns which makes any "results" next to useless anyhow).
That said, "brute forcing" and being "heavily oriented to the air superiority role" through mere kinematics isn't as important as having superior sensors, avionics, and networking these days.
I would say "electronic advancedness" is anything but "simple". If anything it is perhaps the most decisive domain of air combat that you want to maximize your advantages in compared to others.