>>712376064japanese people care a lot about what the original team has to say about a character
in the same way we can't get kiryu in a fighting game because women, or sakura wars in srw due to their respective creators, each line of dialogue for each interaction involving the non-sonic characters would have to be overseen and approved by the yakuza team, atlus, crypton future media and so on respectively, if it isn't outlined in the contract to begin with
it's just a huge hassle