I mean, to my understanding Loli has nothing to do with age and more so with body type. I always hear conflicting answers but I always related Loli to a petite woman so that's the definition I go with. In this context, Luna would fit the bill pretty well, along with pixie and Qarinah. I'd argue Emma and Kana as well. It all depends on if you count short stacks as being Loli's, Lyx fits that bill perfectly, along with some of the side chicks.
I mean, some people use "loli" to mean "Any girl without CC cup breasts or above, or any girl who's under five feet tall", but you won't catch many actual lolicons using it that way because that definition is dumb and overwide.
Think about it. Dude likes small tits, hears loli means petite chicks, searches it, and gets slapped in the face with a bunch of naked anime toddlers and goblins who get taller when they lay down. At that point, what the hell does the term even do?
Loli isn't an age, you're right, it's a body type, but it's significantly more restrictive than just being short and flat. It has a lot to do with body proportions and how the character is presented. Even Quarinah, who's short and flat, doesn't really parse as a loli to me because she just doesn't present as a kid. Compare and contrast her and Alice (I think that's the name of Chloe's sister, at least). Way different.
Shortstacks and lolis don't really belong together any more than deer and gazelle - they may share some similarities but they're wildly different in quite a few key ways, size being only one of them. So Pixie, while definitely cute, is also definitely not a loli, nor an Oppai Loli, just a minigirl shortstack.
People like to fuck with these fetish terms to put down adjacent fetishes they don't like or to argue that someone into X should be into Y, but it's illogical argumentation and only really serves to make it more difficult for people to find whatever it is they're into. Loli != petite, and never should, petite is a totally different fetish group that lacks any of the moral concerns of lolicon and shouldn't be dragged into them just because someone on Reddit didn't like that some people like small titties.