They're using Helaena's neurodivergence as a reason to render her a politicaly insignificant oracle. Don't let them fool you.
At Aegons coronation, they erased Dowager Queen Alicent placing her crown on her daughter's head and calling Helaena her queen.
We know that Helaena was happier before she became queen, but that's after Jaehaerys died. Before that, Helaena doesn't express her opinions and feelings on her ascension or the political scenario.
During Blood and Cheese, Helaena offers her necklace for Jaehaerys' life. Her NECKLACE. In the book, she offers her LIFE. They changed so much of the scene, whole characters aren't where they're supposed to be, but they couldn't leave in a line that shows Helaena is willing to die for her LITTLE CHILDREN, like many mothers would, including neurodivergent ones.
In the book, when forced to choose a son to be murdered under horrible threats made to her daughter, Helaena chooses Maelor to die instead of Jaehaerys. It could be because Maelor was younger and didn't have the awareness that Jaehaerys had, but Helaena's choice ultimately prioritises the life of her firstborn, Aegon's heir. It's a political move. In the show, she's so far removed from politics, the only thing she does that remotely comes close is being forced to parade her son's body around the city.
Then, they refuse to let her call Jaehaerys by his name, instead she calls him "the boy", and people argue that it's because she's in shock, but no other character calls Jaehaerys by his name UNTIL Helaena herself says "I'm sad for Jaehaerys but I ought not to. Children die all the time" in the most dismissive way possible. She doesn't ugly cry. She doesn't sob or scream or express her pain. Her devastating grief is conveniently opted out, and episodes later she is ready to be the cryptical catch-you-in-a-lie targaryen oracle. She doesn't ride her dragon to assist the war efforts, not because she's spiralled into depression and what is crudely called madness, but because she doesn't like to ride, as per Rhaenyra, and if she's ought not to be sad, she can't be enraged or vengeful either, because it would be just as inconvenient and wrong, and she's a pacifist with a sensitive soul that shouldn't be corrupted by her evil brother.
An angry mob of smallfolk throws fish at her and Alicent, when she was notoriously beloved by them in the book.
Her authority as Queen Consort is constantly ignored, bypassed and disrespected by her own mother, when Helaena outranks her.
Why is no one campaigning for Helaena to use the power her position gives her?
They made her a vessel for the prophecy, a plot with so many holes it's become swiss cheese.
Not interested in politics? She's neurodivergent. Doesn't offer her life for her children? She's neurodivergent. Is not consumed by grief? Neurodivergent. Doesn't like to fly on her dragon that she claimed at what, eleven years old?