The discussion was about the current audience in US willing to pay full price for such kind of games in response to bad DQH sales. And you see no problem with having overshipped FFType-0 by such a big margin? SQEX might not be too sad about the amount they shipped since this is basically what they ended up getting the money for and what their statement is based on. The point still is that it underperformed by quite a big margin at retail, which is far more relevant when discussing the userbase.
Does this even matter here when SE achieved what they wanted? You constantly bring up the bargain bin part when almost every successful game does end up there at one point or another, simply because not all of their copies are sold-though to customers. Fallout 4 shipped 12 million to retailers but it is not like all 12 million will be sold easily.
Another example is COD: Ghosts making 1 billion at launch and that was based on sold to retailers. The game was obviously successful even if it did less compared to the other entries in the series, but we can still find its overshipped copies in bargain bins going as low as $1.
Saying Ghosts bombed or there is no audience for the genre because it can be found in bargain bins years after launch won't make any sense when the company in question made their money and moved on to next entry.
The game was never announced for PSV and anyway that´s pretty much irrelevant in this matter.
It was never announced for Vita but it was thanks to the localization begging by the PSP/Vita users that SE even paid any attention to it. It was logical to assume they will just release the PSP port in English for PSP/Vita but they somehow went for the HD Remaster route with FFXV demo. It was essentially an HD remaster that no one wanted.
A comparison with Crisis Core, which is an even more evident spin-off.
Crisis Core sold >300k in its US debut on a single system, namely PSP. It actually had some legs and didn´t suffer from beeing thrown in bargain bins.
Crisis Core is also a spin-off based on the extremely popular FF VII. There is no comparison with it. Did you even see the hype of Cloud, main hero of FF VII, being a character in Smash Bros.? The reaction to it already shows the power of the FF VII brand and the nostalgic feelings it brings to many of the gamers that grew up playing it. So Crisis Core had to sell really well, and it did for sure.
It is silly for you to compare Crisis Core to Type-0 since the latter is essentially a new FF spin-off
A more apt comparison should be Lightning Returns, which was a spin-off to mainline FF like Crisis Core and was also released recently (2014). Here are its debut sales in NPD.
Lightning Returns: Final Fantasy XIII (PS3) < 111K
Lightning Returns: Final Fantasy XIII (360) < 54K
This was on a user base that was higher than PS4/XBO so how can you define Type-0 HD as a failure?