The disjointed nature of the three films proves they needed ONE director and ONE writer for all 3.
TLJ was not a sequel to TFA, and ROS was not a sequel to TLJ.
JJ and Rian wanted their own interpretations of the characters that clashed with the previous.
Kathleen Kennedy failed as a leader by assigning the duties to multiple people.
Bob Iger failed by forcing the rushed 1 Star Wars film per year rule.
Nothing was special or unique about the writing. None of the new characters will be remembered in 2040 with the possible exception of Kylo, whose TFA potential was squandered.
Disappointing on all levels by everyone involved, and they likely will not be remembered as classics or groundbreaking moments in film history.