Not only JRPGs, pretty much every Japanese publisher struggled during the PS360 days.JRPG's became very out of fashion when 360 was the console in the lead, I think people forget that....and it wasn't anything to do with how good or bad the games were, MISFT / Xbox just controlled what was in focus very well and made some things far less popular on purpose.
It has always been the way with Xbox, they want gaming to be centred around american culture and american companies, so they have full control. It's not about art or different experiences, it's all about control and monetization.
Looking back the PS360 was a pretty bad generation compared to the PS4 gen with a lot of negative trends emerging like paywalls, paid online, the beginning of micro transactions, greedy DLCs, gimmicks like the Kinect/Wiimote/Move, awful image quality and performance. The best thing from that gen was Sony finally becoming a powerhouse publisher.