I had my concerns over Dizzy, but I’ve grown to REALLY like her character
She’s a rather effective, entertaining, and adorable means of showing off a different side of the Isle, an unabashedly sweet, AK-like kid stuck with the label of VK, and for showing off Evie’s sisterly side, with someone she legitimately cared for and obviously loves very much, without (or most likely, not as obviously) using Dizzy for personal gain first and foremost.
There’s also tons of potential for fanfics, and exploration of Auradon’s faults when she meets up with her half-aunt, Cinderella, and more so, when she meets her half-cousin, Chad Charming. Dizzy doesn’t strike me as the kind of person to have just accepted Lady Tremaine’s explanations about how much of a “horrible, ungrateful, backstabber” Cinderella was, allegedly “leaving us behind to rot while she lived in that lavish castle,” and she will likely be incredibly determined to get the other side of the story.
(It probably helps that she’s known from a young age that a lot of what her grandmother, aunt, and mother says is exaggerated to outright lies, and there’s more to everything they said.)
She might also be an opportunity for Chad to redeem himself somewhat by trying to educate this estranged relative he had no idea existed, or to show off more of his jerk side, by showing an INCREDIBLY biased view of the villains and the people on the Isle. I doubt that Cinderella sees her step-family as disdainfully as the audience does, but Auradon strikes me as the kind of place that will do as much exaggerating, demonizing, and outright lying to paint a horrific picture of “The Other,” only this time, it’s the Islanders.
It’d be interesting from a story standpoint to show just how far Auradon is from a paradise, and who else has suffered from this union.
There’s also a huge potential for growth and positive female representation; I’d love to see Dizzy taken off the Isle (though that’s standard with all VKs), and become Evie’s first employee in her new fashion business, designing, sewing, and marketing her products not because she’s being forced to, but because she wants to.
It’s a really great way to reconcile Evie’s being the “stereotypical princess” character with a much less sexist portrayal of it, similar to how Rarity from My Little Pony is treated: she’s a proper lady, and fashion is her life, but don’t think that means she’s weak, or that she can’t run a successful business and have an amazing life outside of her career, too.