Well, they did have a management shakeup recently. Hopefully, they put in people to help organize their development.
I think another big problem is what they are trying to pull off with this game. What they should have done is simply recreate the environments in 3D, but keep the area sizes the same. This would have probably kept dev time to 2-3 years. It seems they want to expand on exploration of certain areas, like Midgar. While that is an interesting idea, it just leads to even more work that was, for the most part, already done with the OG FF7. Now, they have to come up with more concept art. More areas have to be built within the game. Possibly more story points and dialogue have to be written/recorded. It's just too much to do, especially while they also want the director to finish up KH3.