Alright so I did some digging and I guess this is not a pitchforks for Kennedy case.
It is exceedingly rare for a director to clash (read: never) so much with the producer that they are fired during the movie itself.
The phrase "low class, self indulgent little infants" is being used to describe Christopher Miller and Phil Lord's behavior. And that may very well end up being the case, as far as Hollywood culture goes. The fuller picture comes to Kennedy's defense here-- on class and principle alone.
This is just something that should NOT happen, and it could very well damage both of their careers. This split was not amicable. They fucked up. You don't do this to a major studio. Miller and Lord both know that, they have a lot of big studio experience-- but they had to make it personal. There will be lasting effects on them for this.
They got themselves fired trying to turn the set into a party-like atmosphere after having been talked to several times politely about the vision for the movie and the process needed to accomplish that vision.
When Gareth Edwards wanted to show people his version of a shot, he shot it when he had time to shoot it because he made time to shoot his own take. HUGE difference in respect for the production, the cast, and the crew here.
The twat brothers weren't even listening from Day 1. They have ceremoniously wasted everyone's time and money with their progressive disrespect.