Alderaan said:
The question is why she hired them in the first place.
A fair question. An article I read said it was Kasdan who chose Lord and Miller and then made a big push for them with Lucasfilm/Disney.
I’m not sure why he or KK thought they would be a good fit, especially since Kennedy stated last year that the movie would have more of a “western” feel. A comedy duo doesn’t seem like the most obvious choice, although I haven’t seen all of their work.