MM wasnt creative at all... except being the most creative Zelda ever. I dont care about the developers, their job is to work as much as they can be worked to create triple A games. In the 90s and early 00s you routinely had developers in Japan sleeping in their offices, working 20 hours shifts, etc to get things done. Now you have this westernized notion of workers rights entering japan as well which is leading to a decline in work hours and productivity.
Game developers aren't robots, they're human beings like you and me. Hard work is always important, but working respectable hours and taking your time on a project is also more important than a mandatory studio-wide death march. The latter is how you get companies like Konami, who treats their developers like shit and makes working conditions a nightmare. Voluntary Crunch-time is one thing, but treating your creators and programmers like slaves is completely different.