"After appearing in RED HOOD AND THE OUTLAWS, we occasionally caught glimpses of the Kori we used to know. Being in a team book with various story arcs didn’t allow her to shine on her own."
Yeah she only had a whole arc devoted to her called "Starfire." A far more complex relationship with her sister who actually loved her and only gave her up to save their people. Had a loving boyfriend without being defined by him. The last RHATO story deal with memories of her past slavery, confronting her tormentor, risking the chance of getting addicted to a drug her captors used to use on her to track down a threat to Earth and forgiving the man that once tried to kill her out of grief for the lost of his family. What else was there?
Kori took over the slaver ship "Starfire" and made it her own! Becoming a respected and feared space captain that the other former slaves followed!
"In this scene, we get a glimpse into some of Kori’s innocence. She’s been on Earth for a few years but being isolated and living the confined life of a her or “Outlaw,” there’s still a bit she might not be caught up on."
Uh no. According to the writers of Starfire she knows enough people in the superhero community to make it impossible for her to not get Earth lingo whether their superheroes or not. Kori was isolated for awhile but she knew enough about Earth to know what the hell Jason and Roy were talking about. She never was confused like she seems to be in her new series. In fact it makes less sense for her to be naïve/innocent (whatever you want to call this portrayal) since she worked with Dick and Roy before she lived on her island. This isn't just stated in RHATO people, it's in Secret Origins #8 as part of Dick Graysons' past.
"Later when Kori discovers her new friend, the sheriff, was named after her grandmother and that the grandmother had passed away, we see the emotional side of Kori. Kori’s known Stella for a very brief time here. Because she is attuned to the emotions of others, the idea of Stella’s elderly grandmother dying of cancer made her sad. This is just another reason you can’t help but appreciate Starfire’s innocent and caring nature."
Except she made her new friend cry. Look how Kori showed she was caring when Jason was mourning his fallen teachers. She knows what he needs and doesn't make him uncomfortable.
"Then there’s sarcasm. Sarcasm is a concept that some actually have difficulty comprehending (especially on the internet). Kori is by no means ignorant but she just isn’t completely aware that people don’t always literally mean everything they say. Think about it, neither Jason Todd nor Roy Harper seem the type to unleash huge amounts of sarcasm."
Are you fucking kidding me? No seriously, are you? Have you ever read Jason Todd and Roy Harper? Their former sidekicks (well business partner in Roys' case now) that have bad experiences with their mentors. Of course their sarcastic! Especially when Jasons' talking to Roy at the start of RHATO ! If she's been around them she knows it! Jason definitely is sarcastic because it's one of the few traits most writers agree he has!
"Along with trying to fit in and find a way to support herself, we also see Kori experience drinking beer in a bar. Jason Todd doesn't seem like much of a beer drinker but it's likely Roy Harper would be the type to pick up the occasional six pack."
I never got why since Dick is said to be 21 while Jason is of course younger, but for some reason artists like Greg Capullo (who in his defense thought Dick was 23) draw Jason drinking beer. That's what he's doing at the end of DOTF. Lobdell himself has had Jason drinking at the bar in RHATO #4 although that was to start a fight to get attention from the cops. I'm pretty sure the writer of this article hasn't read the series since Roy doesn't drink as he's a recovering alcoholic. I'm not sure if that would keep Jason and Kori from having beer at home but they traveled a lot to places they could get drinks at. I'm no fan of Tynions' run but the cover implies drinking isn't a strange concept to her. (Note Roy is drinking water here.)
"Kori also has to go shopping. Her purple outfit might not stick out too much given the location she's at but having some normal clothes could be helpful."
She had no problem flying ahead of Jason and Roy to get a fashionable outfit then meet them in a limo. Not something she could have done without understanding how money works. And since I doubt she normally lines her battle wear with money that means she'd also have to have some concept of how banks worked.
There's a difference between naïve and dim. As I said elsewhere Booster Golds' first series dealt with him being naïve while this doesn't make Kori look like the brightest bulb. This is regression, actually it's worse since Starfire has never acted like this not even on the cartoon.