We can assume that the developers did not intend to create a boring game. And they have experience creating good games. So while they may not be a direct follower of a successful game, they may think they know what makes the game fun. Only, of course, the results show that this is not the case. What is the question? Is there a scientific basis for creating a good game? Is it true that developers sometimes stumble in the dark, sometimes they succeed, and sometimes they do not?
I think the answer to that question will have a big impact on the games we get. If Platinum Games is thinking about how to create successful games, we can find a variety of new and exciting games from them. If only their series were successful, they did not know how to create a new game, then we would end up repeating the same elements over and over again.