If a character has around two thirds of people saying they really don't like what they do and the other third vociferously defending them, then it's usually the case they weren't well thought-through. Have a lot of time for So as a writer generally, but it's clear from the way he talks about Akane (and where his likes have landed in this thread) that he wrote her in a spiteful, meta, against-the-game kind of mindset, with predictable consequences.
The larger fault lies with TiTS itself and its wild tonal problems. The way Fen constructed it and wrote its foundational content, it was clearly supposed to be a silly, light space adventure with lots of colorful sex and no hard feelings. In this environment of pure wish fulfilment, a quite hateful character like Akane has no place whatsoever. But Fen allows just about anyone to write for these games, his editorial policy and directive abilities are slim to nonexistent, and he himself will put in a genocidal bug war without thinking it through!
Savin (and myself tbf) conceptualise TiTS to be a somewhat grittier and bleaker experience, following stuff like New Texas to its logical conclusion whilst Fen's over there waving his arms crying 'Noooo you're not supposed to think about it!' The rest of the writers are doing whatever, only intermittently creating what the main dev would like them to.
The outcome is that it's not possible to consider the PC's situation critically. Are we supposed to take the anime-ish premise at face value, that dear old dad meant us to become a more rounded space adventurer and the cousin's there to represent the dick we're not? Or do we look across at NPCs such as Reaha and think "Actually, I'm a ludicrously privileged sex tourist and this whole quest is transparently stupid"? You can try and argue that it's meant to be ambiguous but believe me, it's not, it's that no-one writing this shit is talking to anyone else.
I think things are a bit tighter than it used to be. Zheng Shi hangs together relatively well, and given that its hat is slavery it's managed to avoid major controversy pretty admirably. But NPCs like Akane are the product of an extremely loose editorial policy and a game with wildly varying tone. I'd like TiTS to be a game where she fits in without causing much of a stir, but ultimately the game is supposed to be about wish fulfillment, not a punishment sim, and it's only due to said wildly varying tone that she works at all.