I'd say yes, FF13 was such a dissapointing game, so it def. had some big influence. But it also didn't help that FFXV is the most westernized FF of the entire franchise and right from the start it was promoted as such, so i'd argue the japanese market was not as excited for this entry as it was for previous ones. We need the sales number from western markets to really measure how much of a success or failure this game was.