comments explain pretty well, but we all know why. fandom spaces exclude poc or drown them out. people will claim this is bc tai and van are cheating in the adult timeline, trying to moralize characters like we didnt open in S1 to shauna masturbating to her daughters bf (and the fact that the show is implying an incestous, or at the very least, very inappropriate relationship btwn shauna and callie but that is a whole other post). similarly, moralizing in yellowjackets is odd, considering no character is fully good and innocent (except for laura lee lmfao, and even that's debatable)
anywho, back to the point, we all have eyes and can see that tai is a black woman which, in fandom spaces, essentially dooms her as a character. we can see this in the debate about whether tai is masc or femme. tai is, objectively, quite femme as a character, but this is so heavily argued because black feminity is misunderstood and demonized by white people. on a similar note, van is masc, objectively. though taissa isnt masc, her being perceived as such by white members of the fandom paints taivan as masc4masc, which is also heavily demonized in fandom. i mean, ffs, people call ellie williams butch, but i digress.
back on topic, i think a lot of the reasons taivan doesnt get attention is racism in fandom spaces. yj has ~3 black women characters (not counting adult doubles), akilah, tai, and simone, of which 2 of those characters are side characters (though i am praying they become main characters, esp my bb akilah who has never done anything wrong ever in her life and simone who had an extremely understandable series of reactions to the everything).
its frustrating to see this happen time and time again, black lesbians being pushed aside and forgotten and deemed masc simply because they dont fit white beauty standards or eurocentric definitions of feminity and we can see that happen heavily in yjs. we even see this happen to lottienat/lottielee at times, in which people will automatically make lottie the aggressor in most situations due to her being a taller brown woman. BEFORE ANYONE SAYS THATS JUST A HEADCANON: the problem isnt that she is more dominant than the two, the problem is that this is constantly assumed to be true for characters in the fandom and in other fandom spaces, in which brown women are assumed to be the aggressors in every situation regardless of on-screen personality or otherwise.
what i am trying to say is, overall, white fandom spaces have issues with misrepresenting characters of color and they do not give them the same grace as white characters. anywho, for anyone reading this, sorry this kinda rambled, i am working and writing this as i just needed to get my thoughts on this out as it pisses me off since TAIVAN 🔛🔝‼️‼️‼️😫😫😫 and bc i am just tired of seeing this happen overall. have a nice day yall.