Is Shigeru Miyamoto’s ‘A delayed game is eventually good’ rule true for Nintendo?

it depends, if you have a strong leadership, vision and focus for the project or game, delays can help alot because the person in charge knows what it needs to realize the task, but if you don’t have that, delays could completely destroy your game, take for example Cyberpunk terrible management and end result, it wouldn’t matter if they delayed the game even more cause the issue here is not time is the horrid management.