The rumor came from a single site that has a bit of a dodgy reputation so yeah it might not be true.
That said, though, I'll take this opportunity to list some under-the-radar stuff. Games I almost never see mentioned even when someone's asking things like this. Which means YMMV heavily on whether they're good or bad



PSP
Wild Arms XF - While Wild Arms isn't *too* unknown as a franchise, this entry doesn't get mentioned much. Maybe it's because it's a tactical RPG instead of a regular turn-based RPG. Maybe the game just wasn't that good. I don't remember disliking it

Valkyria Chronicles 2 - Similarly, Valkyria Chronicles isn't exactly an under-the-radar franchise either, but again, I feel like this entry is. I honestly don't think it was really worse than the first game either, it just happened to be a PSP exclusive instead of being on home consoles like the first and fourth games. Relatively late in the PSP's lifetime too, I believe. There's also VC3, but that one never even got an official localization.

Legend of Heroes: Gagharv trilogy - aka Moonlight Witch, Tear of Vermillion and Song of the Ocean. These are pre-Trails entries in the LoH franchise that don't see much light of day in conversations, and when they do they tend to get flak for being subpar versions or bad localizations. But y'know what, I really liked Moonlight Witch, had an enjoyable time with Tear of Vermillion and..well okay, i'd kind of gotten over my PSP when i started Song of the Ocean, I should give it a go again some time.

Vita
Tales of Hearts R - Again, an entry in a big franchise that just gets overshadowed by its big brothers every step of the way. I promise this list will have some non-franchise titles too
Anyway, Tales of Hearts R is a remake of the never-localized DS game, Tales of Hearts. It's good, just not nearly as high-profile as other Tales games.

Soul Sacrifice Delta - An expanded version of Soul Sacrifice. It's a kinda Monster Hunter-esque game, but also different. You hunt enemies for spells, use those spells to hunt stronger stuff, and you can sacrifice enemies, allies or even parts of your own body for various effects like healing or special attacks.

PS3

White Knight Chronicles 2 - Which includes a free updated version of White Knight Chronicles 1! These two Level-5 RPGs had a pretty meh reception due to its noticeable flaws, but it did have some interesting stuff. It's a real-time RPG where you completely build your character, including your set of attacks/skills. It had co-op multiplayer as well, and you could build your own town (Dark Cloud-style sorta).

Ar nosurge - One of my favorites, set in the same universe (but distant past) as the Ar Tonelico games. A turn-based RPG similar to Ar Tonelico 2, where your frontline attacks and guards using timed button presses while your backline charges up song magic. You also dive into characters' psyches through Visual Novel-style segments. The game's a sequel to Ciel nosurge, a vita game that was never localized, but that didn't really get in the way of my understanding the story when I played it. There's a PS4 version, but as of yet, no localization has been announced.

Cross Edge - a crossover RPG made by Idea Factory (so don't expect a technical achievement here ), containing characters from Darkstalkers, Ar Tonelico, Disgaea and a couple of Atelier games. Despite its issues I very much enjoyed it, probably because of the rather unique set of games they picked for this crossover.

So there you have it, a short list of flawed and hidden games that I still feel should occasionally be remembered, this seemed as good a place as any to finally post a few that I've been wanting to mention