There are mixups in this game that aren't just low/mid/high. The aB feints are + on block and allow you to keep pressing an advantage and wailing on their guard (something else she's good at).
The 1st hit is still high, the 2nd hit is still highly delayed and so what if it is + on block? She can't even get a tick throw in. She's taking a huge risk in the hopes that the opponent will be dumb enough to try to pull off a move afterwards and eat an AA, 3B or some other fast move. It'll work maybe twice, but then the opponent's gonna wise up and wham, mix-up useless.
She also has stuff like 4B B_bK. There's no option that beats both, and it does heavy guard damage.
B_bK has a delay. It's not about whether or not people can simply hit you out of the mix-ups, it's about how difficult they are to guess and/or block on reaction. Block standing twice, if she's still moving after some frames on the 2nd hit,
jump (or block low) and Leixia will be a sitting duck.
I'm not sure what the window of opportunity is to react to B_bK, but there's a reason why high level players don't use it much.
I've won rounds with the 88_22 K_kA mixup alone; remember after each successful guess, you get another mixup. Keep reading them and the damage piles up. And again, if you choose kA, you get ANOTHER mixup at the end.
Are you opponents in a coma? How can they consistently lose the 22_88 K/kA mix-up? They can just slide-block from low to standing if they suck at guessing in order to at least minimize the amount of times they lose to it.
That said, I don't think you're understanding exactly what I meant by "mix-up". You almost never have to block Leixia's lows. If they 22_88 K you, wow, you just ate 25 of damage! Just block standing because if she does a 22_88 kAAB/K, the mix-up at the end only does nominal damage.
Also, the kA mix-up is
alsodelayed. The K comes out fast while the B only comes out after a split. How can they possibly lose that mix-up consistently? Just block standing and if you notice that Leixia is still moving, block low.
6KK doesn't need to combo into anything, it puts you in FC with a 10 frame advantage. From which you can mixup.
Yes, and? Her mix-ups are still bad from there. So 6KK (on hit) allows her to mix-up.
And? How does this mean that she has a good mix-up game?!
Two options from FC lead to combos. Four if we're going to count 4K and FC 3bB.
Or they could just do a standing block from crouch. They aren't forced to
remain in FC.
But she sure as hell has mixups.
Mediocre ones. She has
zero true 50/50s that both lead to either heavy damage and/or combos. Almost every single one of her mix-ups is between a mid that will combo/do heavy damage or a low that will just do nominal damage (and throws). Do they exist? Yes. Are they great? No.
I don't know who you're playing or what their level are. But take a look at any good Leixia's (or Xianghua's). The mix-ups you're lauding are seldom used for the very reasons I've chronicled above.