head to head
Killer Instinct (2013) asks more than Mortal Kombat 11, and the gap is execution.

Execution · Grand Arena
A combo system built on constant Combo Breaker mind-games that create a unique adaptive read-off at every moment of a combo.

Reads · Grand Arena
A controlled-pace fighter where resource management and opponent modelling outweigh raw execution pressure.
Killer Instinct (2013) leans Execution (Grand Arena); Mortal Kombat 11 leans Reads (Grand Arena).
Killer Instinct (2013) leans clearly harder on execution.
Killer Instinct (2013)
Shadow counters and Combo Breaker timing demand very precise inputs
Mortal Kombat 11
Kustom variation execution is demanding but more accessible than MKX
Killer Instinct (2013) leans a little harder on reads, though the gap is small.
Killer Instinct (2013)
Combo Breaker prediction is a pure read-off against an adaptive opponent
Mortal Kombat 11
Fatal Blow timing reads and opponent tendency tracking are constant
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Killer Instinct (2013)
No RNG; all mechanics are fully visible
Mortal Kombat 11
No RNG; all mechanics are visible
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Killer Instinct (2013)
Instinct activation timing and optimal opener routes are well-studied
Mortal Kombat 11
Fatal Blow baiting, Kustom build selection, and frame data extensively studied
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.