I don't think approaching this development from a skeptical point of view is entirely unreasonable. Other works that were designed to appeal to the demographic this is aimed at are not exactly known for there quality.
I don't think anyone's saying you can't, but there's still too little to go on.
The sports jock doesn't necessarily have to be the stereotypical anti-girly mean person. (e.g. Sue from the new LPS series.)
I'm only a man in a silly red sheet
Digging for kryptonite on this one way street
human!Octavia needs to be a deadpan troll like Mai from Nichijou.
Vinyl does morning announcements over PA and runs the school radio station.
Berry Punch...I don't know what to do with Berry Punch.
Probably something like "Doesn't get enough sleep" or something.
According to that article, it's more that the girls are being sent on a mission to a strange new world where they take on a different form.
Which makes me think that it's less "what would these characters be like if they grew up in a world like this" and more "Remember the Prime Directive. They can't know we're not from here"
I have a message from another time...