Even more shocking, they admitted to not having a writer’s room, which explains so SO much about the series. Women in the panel were particularly vocal about the lack of perspective for the scripts due to this oversight, but Benioff and Weiss seemed to brush off the criticism and make excuses for this decision. They stated that they made being on set during the difficult shoots a requirement for writers, which apparently turned a lot of writers off from joining them. It seems like an intentional move on their part to shut down collaboration, despite HBO encouraging them to do so.
Source:
https://thegeekiary.com/david-benioff-d-b-weiss/72778
Ok, ca confirmerait ce qu'on vient de dire donc. Ils voulaient pas laisser leur "bébé".