Actually Sion's j.B is one of the worst moves to use as a main air footsie
It's good for hitting people below you.
her j.C is the worst in the game... It's not even close to V.Sion's j.C and it's only useful to use after j.A or j.B...
Top is Sion. Bottom is VSion.
Sion's j.B is really bad as it has poor range and if you whiff you'll get comboed
Spacing defensively, people whiff these moves all day. Used properly on offense these moves are good. Sion jB has a similar hitbox to FTohno jB/Miyako jC. It's a very good move.
Her airset was already by far the weakest one even in MBAC, but she could adapt it because of j.A godlike properties (eg. ground dash j.A or airdash j.AC/AB/ABC/ACB/AAAA guard break, etc). The j.A was her main neutral game move by far..
The thing is, this isn't MBAC anymore. The reason her air game wasn't that strong was because other character's jAs were obscenely good. Now that other characters jAs got massively nerfed her other air normals(jB, jC) are great. Her overall air moveset in MBAA is great. j214a catches antiairs in startup, j2C is another good air to ground normal, jB can be good air to air or air to ground, jC is great if they're above you, and j[c] can be used for movement tricks or to fish for CH after air dp ender. Even jA can be used if you want to catch someone in startup. She still struggles in neutral but that's the result of her weak ground game.
In general she had a bad neutral games (no priority in air, no range in land)
2c superarmor --> 214c --> big damage. 214b has hella range to catch unsafe long range pokes/mindless falling down actions. She didn't have the best neutral in the game but it was still respectable.
Then they make her airthrow, the key of her pressure, techable
This is a problem a lot of characters in MBAA face. C-Sion at least has the option to end combos in 214a/j214c to get oki. And again, if she does air dp ender she can fish for CH effectively with jC/j[C]. If they respect falling down you can dp/airthrow to hit them anyways.
nerf her string options
The only "nerf" to her string options is that manual reload is slower. But you can't bara bullets on block anymore now either, which makes bullet pressure waaaay more gdlk.
her dash
Pretty sure her dash is 100% the same.
her damage
She still has really good damage off j[c] loop. She doesn't have as much damage off oki enders, but again, that's a pretty universal nerf in MBAA.
her overhead
Her overhead is the same minus low invulnerability. That's a very minor nerf when you consider how easy it is for her to CH people for mashing.
Chest with F
Is that the orange F-Sion?
About the animation: I didn't mean they have to change the recovery frames, only the animation. The way it is now what you see is far from what is happening: the very reason why people didnt understand the image I've posted... They should make her kick look shorter and end more quick, even if the recovery frames will be the same, so it wont confuse the players..
They could do that but I'm guessing they probably didn't because it'd look awkward to see the move visually end but have you in a state where you can't do anything.