L0rdoftheFLY, EX dash xx up slash is slower than you think. If Freddy or Noob is spamming gloves and tackles from the correct range, respectively, you are never punishing either projectile on reaction. Up slash is not even safe on block. Besides, its hitbox is very sloppy. It whiffs on low pokes that lower a character's hitbox. Sonya's EX cartwheel is superior in every way but range.
One of the reasons people think Skarlet is strong is because of 50/50 mix ups when in reality there is no 50/50 mix up between the red slide and the down slash. The down slash can be blocked on reaction, so all you have to do is block low.
And I have no clue why people are comparing Sonya's d+4 xx MS f+1 to Skarlet's d+4 xx red dash. That is an outrageous comparison.