There is no way the AMRAAM will overshoot the Sukhoi doing a
cobra. Neither would a decent combat pilot want to put an AMRAAM on
the 6 'O' Clock position if he is not confident of out running
it.
When it comes to BVR, the Cobra is dubbed the "Sitting Duck"
maneuver.
In close range ACM, the Sukhoi's ability to tahan high angle of
attacks (Not just pertaining to the Cobra) grants better
"initiative" to take high-aspect off boresight snapshots with
weapons like the R-73 Archer.
On the defensive, high AoA manuevering generally bleeds energy and
presents itself a larger target. Higher thrust from the engines or
thrust vectoring are also preferred in order to recover the
aircraft and regain energy. Hotter engines, juicier targets for
heaters. Slower target, easier target. In other words, high AoA
maneuvers better kill the enemy OR else...