No they don't. It has more to do with the company structure and how things are being run. It has mostly to do with people who make the decisions and greenlight games like these instead of what people want. Based on FFXIII-2 sales, it's clear that more than 50% of people who bought FFXIII didn't return, now will they return for Lightning Returns?
SE still has a lot of talent, they just don't have a proper direction. The latter matters a lot.
All that was a large part of Sakaguchi's job when he was at Square, so the same point applies. He was basically managing Square's whole game department by the 16-bit era until he left the company about midway through the PS2 era. He was the guy who essentially decided what they made and who worked on what project.