I would love to read a tell-all book by Rian Johnson after he retires and no longer has to worry about pissing off entertainment industry VIPs. I strongly suspect that The Last Jedi was the victim of huge levels of executive meddling. There’s some really solid ideas in that movie. My two favourites are the open critique of the Jedi in both their philosophy and actions, and calling out the military-industrial complex. But it’s buried in overly-long and often-unnecessary action setpieces that bring the whole plot to a screeching halt and feel shoehorned-in - such as literally everything that happened after Ben offered Rey a partnership after the throne room fight.