Time to put some things into perspective, regarding the Leifang change in V1.04, of 2K from crouching to standing. She lost a great tool. It was one of her best defensive moves when expecting a high from the opponent, but still trying to play it a bit safe. If you get the counter hit, you get a decent advantage, if the opponent just stands and blocks, you're at only -6, giving them only a breakable throw. It's the only viable low she had for up close combat. This is what she has now, all with fastest stagger escape:
Leifang, 2K, (15 frame low kick, no tracking)
NH: -6, 10 dmg
CH: +12, 22 dmg
HCH: +12, 25 dmg
After the change, you have to resort to the unsafe moves like 66K (-12 on block), 3P+K (-15), 1P (-11), 4P (if it actually crushes the high), or the crappy lows that are 2P and 2F+K, to try and beat high attacks. Wait what? 2F+K crappy? YES. Here's why.
Leifang, 2F+K, (20 frame low kick, no tracking)
NH: +6, 20 dmg (up close)
NH: -10, 10 dmg (far away)
CH: +6, 25 dmg (up close)
CH: -10, 16 dmg (far away)
HCH: +6, 30 dmg (up close)
HCH: -10, 16 dmg (far away)
And here's 2P (15 frames, no tracking):
NH: +0, 5 dmg
CH: +0, 6 dmg
HCH: +0, 7 dmg
One can easily see the benefit of 2K here. It's fast and very useful on counter blow. The others, not so much. People have been saying they found it weird that Busa and Fu got their 2K to standing position in prior DOA5U, while Leifang didn't. It actually makes sense that way. Why? Because Busa and Fu have other lows to compensate at least partially. They both have a genius 1P that trumps their 2K. Let me demonstrate. All are at fastest stagger escape.
Busa, 1P (16 frame low punch, tracks)
NH: -7, 18 dmg
CH: +10, 22 dmg
HCH: +10, 27 dmg
Gen Fu, 1P (18 frame low punch, tracks)
NH: -3, 20 dmg
CH: +15, 25 dmg
HCH: +15, 30 dmg
They might not be 15 frames, but they are still fast enough, they track, they do more damage, and they give superior advantage compared to Leifang's lows. Do they need 2K? Not really. Does Leifang? Seems like it, don't you think?