Originally Posted by LO
The Sovs/Rooskies didn't/don't design fighters for air shows but have nevertheless spent the past 40 years (since the genesis of the MiG-29/Su-27 designs) trying to make fighters that are predictable and controllable at high alpha and low speed, culminating in the Su-35, which is going to water people's eyes at Paris if the plan to display it stays on track.
Why?
Similarly, one could ask why, after looking at it closely with the X-31 and various F-15 and F/A-18 TV/HA mods, the US hasn't pursued it. Perhaps because there is little tactical return for the investment?