Hey, I've played all of those except Persona 2. Whether I agree with the list..well yes and no, for like half of them I disagree that they're insane at all, but that's more a disagreement on their notion that their "key points" make a game insane, rather than whether the games listed comply with those key points.

FFVII for example indeed has a mix of magic and technology, the setting (well, Midgar anyway, not so much the rest of the world) was indeed experimental for its time and it does have flawed characters and a lovecraftian horror. Do I think it's an insane game? Not at all.

Anyway, some titles that come to mind that I feel are more crazy/weird/experimental than at least some of those listed:

Parasite Eve - The mix of RPG/survival horror gameplay, the story that's all kinds of weird, all the horror stuff. Definitely crazy.

Ar Tonelico - Speaking of mixing magic and technology, in this one we have artificially created humanoids who cast song magic by singing in an outlandish, fictional yet fully-fledged language created specifically for this setting. On top of that, using a machine, you dive into the psyche of these artificial humans and explore it Visual Novel-style. Also, the enemies in this game are computer viruses that physically materialize.

Atelier Marie - The first Atelier game, during a time when JRPGs were all about going on an epic adventure to kill god. Meanwhile in this slice-of-life JRPG you gather materials to use in alchemy so you can craft items to make your workshop successful.

Xenoblade Chronicles X - For starters it has a full open world, which no other JRPG I can think of has (not even FFXV, which is really only half open world). It of course retains the unique gameplay of the first Xenoblade game, while adding more on top of that, including a ton more customization in characters (particularly the main character) and mech combat. Story-wise it has a major focus on exploration, sidequests and optional characters, rather unlike most JRPGs (especially those of its era). Soundtrack's pretty unique too.

I'm sure there are more but those were at the top of my head anyway.