It's an interesting theory, but we have far too little evidence to start talking to Yuku about it right now given how circumstantial everything is.
If it helps, I'm spitballing with that last line. It seems worth putting the idea to the thread to examine given that I
have been pushing to acquire Kato's seed if reasonably possible.
Because it wouldn't be. You can never have enough seeds, you can never be safe enough from witching. Her behavior isn't rational, sure, but we knew that already. What it is is consistent with someone who has trauma relating to running out of seeds and is now absolutely terrified of ever being anywhere near letting that happen.
I think there's more to it than that. It's not just a matter of how rational it is, Akiko being self interested in her underlying motives just doesn't jive to me with her wish: She made her wish for someone else's sake. And as she still had her powers, I'd say its reasonable to argue that
some interpretation of that wish was still in play, still driving her, at least up to the moment we beat her.
There's when we beat her her lines to consider:
Akiko shrieks, eyes wild and crazed. You're not even sure if she's actually reacting to you sending her Soul Gem away or continuing her apparent insanity. "No! I must-No, no, no!" She squirms wildly, thrashing like a maddened animal in her binding of ribbons.
Akiko's awakening is undramatic. Her eyes flicker open, muzzily blinking back the haze of confusion for a moment, before they start darting around wildly. She begins struggling in her bonds, a quiet litany flowing from her lips. "No, no, no, I can't fail, no, no..."
If it were that Akiko can't lose seeds or income, I think she'd have said something different there.
She must
do something. She can't
fail. It reads like there was a goal there.
More than that, since we left off she's been saying things to Rin, trying to influence her in some way. As such it's not unlikely she still has those goals in mind.
It would also be kind of fitting that the person with
hair halfway between Sayaka's and Homura's (dark blue and halfway down her back) has a character and arc between both of them too: She wishes out of love, unrequited, and it ends in a witch. And even now,
everything is for
MadokaKato. The person she cared most for died and she'd do
anything to save her. It feels like something Firn would do cheekily.
-------------------------------
On a related tangent, a plotbunny hit:
I wonder if someone
did succeed in making a clear seed once. Sometime long in the past, but recent enough to be a legend some girls have heard.
A group of magical girls lose their friend. She becomes a witch. But they get it into their heads that it was the
grief that caused this. So if they can
remove the grief it might restore her.
It takes a long time, but together they gain the aid of a grief controller who can help them, and they gather a thousand seeds. (Specifically a thousand grief seeds, in this case, because its a number that ties into the Japanese legend that folding a thousand origami cranes cranes can get you a wish granted.)
And... they do it. They win. They clear the seed. And more than that, they were
right. They bring their friend back.
Everything can be fixed.
Except...
They talk about how they did it. It becomes a legend among magical girls. And people start to take advantage of the idea.
Now, everyone has hope that everything can be fixed but resources are scarce. In places like Tokyo, girls hoard desperately because maybe... just
maybe. The Sendais of the world turn to extreme measures, crueler ones, and invite enmity upon themselves for it. And then there are the others, the Iowa of the world. City raiders who, regardless of desire to gain their own thousand or simple efficiency, realize they don't
have to hunt seeds themselves. They just need to prey on the desperation and hoarding of others.
Now, this isn't even a theory so much as me just spinning a yarn because it sounds like it has the foundations of a good story, but it ties in to things nicely: It would explain how Kyuubey knows just how much trouble Clear Seeds can cause. It would fit the motives of the girls we've seen and changes Madoka made to this world. It might also help explain the notable "Optimism" of Japan that Nadia mentioned back when we met her, especially if it first happened in Japan itself.
And it's a bit of hope, one that can all too easily cause yet greater tragedy. Which just seems
fitting to PMMM, both in PMAS's incarnation of and without.