I honestly appreciate the concept and idea of what Jax is meant to represent (the extremely messy trans people who've had to repress themselves and it comes out negatively). I like that a bunch of people I know who are trans women or feminine completely resonate with Jax and it makes me appreciate that.
But I honestly feel a bit stunned that people are fine with the hints of the transness being subtle when the hints that are subtle could genuinely be easily mistaken or brushed off not as transness. Hell, I'm a trans dude and I honestly buy many headcanons of characters being trans and I actively headcanon a few of my favs the same way, but when I watched the finale, everything that indicated to Jax being a trans woman could easily be mistaken for the likes of mere toxic masculinity, Ribbit just being a good friend and comforting Jax or even misinterpreting it as Jax being a trans man if anything. For the longest time, a great portion of the TADC fanbase thought the trans coding that was there was indicating to trans man Jax and that only changed by the time we got around to episode 8
As a comment under the OG post put it, we already have pieces of transgender media and characters that are much more explicitly trans without nessecarily having the character say straight to the screen "Hey I'm trans".
Even Undertale and Deltarune are much more explicit with their transgender characters, and nobody explicitly turns to the screen and says they are transgender. Toby Fox didn't need to say that these characters are trans, but by god, he put a lot of work into making it known that they are trans and that it shouldn't be mistaken for ANYTHING ELSE when it came to that. Mettaton and his quest for a body he always wanted, Mad Mew Mew integrating into a body she never expected, Napstablook being content with not being in a corporeal form, Kris being explicitly never stated as feminine or masculine but things go awry when you try and force Kris into a more typically gendered role in the weird route, Frisk being a seperate entity from Chara and the player and still being explicitly referred to as 'them', Chara being their own entity and never put into any box, the lion in Undertale who's a fan of Mettaton and wants to wear Mettaton's dress and enjoys it, and in Deltarune we see that same lion and she's now a lioness and working in a diner.
I think what's even worse about the Jax representation to me is that it wasn't like Goose was being censored or heavily watched by a big network willing to shut her work down at the first sight of any character that is queer or trans. She had full creative control over her own work. She even made Zooble explicitly non binary. You don't need to be told Zooble is transgender, but the fact that they are referred to with they/them throughout the show and much of their arc is about being uncomfortable in their own skin and finding peace with it is enough for people to get the impression it is about transness and gender identity. Goose didn't even need a character, much less Zooble themselves to turn to the screen and say "I'm non binary" for most of the audience to understand that fact.