Sektor has no offense (i.e., react-able overhead, no plus strings, no throw combos, etc.) in a highly offensive meta
Admittedly, in the match ups that she can zone and run away, she does feel really strong.
In the match ups that she cannot zone and run away, she feels entirely useless.
She is best used as a counter-pick character.
She also has certain hitbox issues that the developers have yet to address.
If I were to compete and play for money, I would main Kung Lao/Sektor (kameo) and use Sektor (character) as a counter-pick character.
She ought to receive fixes and minor buffs.