Straight to the point.
She was given a buff to her unique that allowed her to gain 15 speed for every toon that doesn't have a buff. They gave her this buff at the same time (I believe) they released Zeta abilities.
So question is this, why give her a buff in an attempt to make her more usable only to have two Zeta's (now three with First Order faction) that completely neuter her speed buff?
The buff wasn't that great to begin with because as the battle progress and enemies get buffs she slows down. So it really only benefitted her first turn. With pretaunts being prevalent, she effectively had a 60 speed buff.
That's 3 factions (Zaul, QGZ, Phazma) that render her buff useless on first turn.
I get that toons aren't garuanteed to be useful or arena viable but instead of leaving her alone, they gave her a buff that grows more difficult to use as people start unlocking Zeta's.