Note: This is long, but I felt the need to toss my penny into the fountain regarding Nomura. If you just want more general RM discussion, go ahead and scroll past my pizzity-pizzost.
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Blaming individual people single-handedly for the delay of Remake--and I mean "blame" in the direct, emotional sense, i.e. 'we are frustrated and have been misled, and this is the person we need to direct our anger at, as they are responsible'--is not a particularly useful thing to do, nor does it tend to be accurate in terms of the countless hands, internal politics, and just generally massive machine involved in the development of a huge project like this. That said, I don't think most of the people addressing their concerns with Nomura are doing that; rather, they are doing just what it seems they are...addressing their concerns. Emotions around RM obviously run high, but that doesn't mean pondering the roles of specific individuals in the game's extremely rocky, unusual development (and make no mistake, the complete dearth of significant information for years at a time, the repeated start-stops, ARE unusual, although far from unheard of) is invalid. Especially considering that the dynamics at SE are something the general public has a bit more of a window into compared to many other companies, as well as the big changes it has gone through in the past decade+, this is actually more relevant than it might otherwise be.
So, Nomura. Completely apart from the specific games he's worked on, his art style, etc, let's just look at his position within SE and his tendencies as an actual job, as described by both others as well as himself. For my 2 cents, I'm only going to quote from the FF7 oral history Polygon put out some 17 months ago (an amazing article, easily my favorite piece of FF-related journalism ever).
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Motonori Sakakibara: "(Of Nomura) His standards were extremely high. He was always concerned about the characters' eyes, for example...I don't think he ever gave me a simple approval."
Nomura: "(Responding) I’m a little bit fickle, so I’m not the type of person to work on one thing and focus simply on that. Say, if I’m drawing — I wouldn’t work on one single piece at a time. It would be more like four or five...I might work on different projects to change my mood and get that sort of refresh", [then later, almost as afterthought] "But if there is a deadline, of course I’ll prioritize that."
Hiroshi Kawai: "I might sound a little condescending here, but he seemed like a very dedicated artist back during Final Fantasy 7. I don’t know what about 7 itself, or perhaps it was actually Final Fantasy 8 that changed the tide, but he seemed to become a very different person at that point, where the authority that he gained from Final Fantasy 7 and Final Fantasy 8 got to a point where he became sort of untouchable in a similar vein as Sakaguchi-san. You couldn’t really fight against him."
Further discussion of the many factors that delayed the project ever starting in the past, among them Nomura's schedule/habits, from peers and himself:
Yoshinori Kitase: "He's very, very detail oriented. And he really pushes right up to that final deadline--or past it."
Nomura: (Responding) "That's only when we haven't gotten approval."
Kitase: "Oh? That's funny, I don't remember it being like that before. (Laughs)."
Nomura: "Depending on my schedule, maybe I was too busy to actually tackle the project, or something else would come up. So it’s been around, but it never came to pass. But now that I have a little bit of availability in my schedule, we decided that we wanted to go ahead and kick it off." (Comforting, right?)
Finally, there's a thread running throughout the piece on how Sakaguchi's era was very different, as he's described also as a massively controlling, nigh-unchallengeable leader, but distinct in his use of that power to unify and get things done quickly:
Tatsuya Yoshinari: "(On Sakaguchi) [He was] that powerful leader who really kind of had that aura of leadership and drove everyone forward."
Kazuyuki Hashimoto: "That was why everybody moved quickly. It was so exciting. And after Sakaguchi-san left, no one wanted to take responsibility, so all the decision making needed lots of approvals, which took a long, long time. The company didn’t move very quickly. It suffered from 'big company disease.'"
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So, I find a lot of this discussion so fascinating and revealing that I could honestly do a breakdown for each and every quote, and make anyone who's actually read this even more bored to tears, but I don't think it's necessary. Even with the trademark Japanese-business politeness and dancing around of negative issues with those who hold more power, higher positions, or seniority, it seems clear in my opinion that Nomura is both
A: An extremely creative, talented dude, and
B: Someone who handing the reins to this project was, is, and will continue to be highly problematic.