Finally saw this over the weekend, and I LOVED it! What a fun movie! I'm actually kind of bummed at how they'll probably never explore the potential for sequels, because I can see how Crimson Dawn would be a great "underworld" organization to act as a foil to Han, the Rebellion, etc., without directly involving the Empire. This could even play in to the rumored Obi-Wan "Star Wars Story" indirectly. That said, what I most enjoyed was actually all of the background information and fleshing out of the Star Wars universe that the film did (including lifting a bunch of stuff from old WEG sourcebook materials).
I think, ultimately, that the failure of this film was a financial one, not a storytelling one. The film itself is solid, but tapping Lord & Miller was......really stupid. You can see the humor infused into the film, and as it plays on screen, it plays well. But I can also see how all of those scenes could have been played WAY more for comedy and broad laughs, and how that wouldn't have worked and would have completely changed the vibe of the film. The thing that gets me is, when you hire the directors of 21 Jump Street, you ought to know what you're getting. I mean, yes, the Russo Brothers started in comedy, too, and now are directing some of Marvel's best films...but just because those guys did it doesn't mean that these guys could as well. That just strikes me as typical dumb Hollywood trendiness. Comedic directors can understand drama, but that doesn't mean ALL of them do. Nor does it mean that you hire guys who work primarily in the improv world for a precisely budgeted film. For all of the crap that Kathleen Kennedy has received for things I think she didn't deserve, she definitely deserves a dressing down for that.
And the thing is, if the film had stayed at something like $140-150M -- which it's possible it could have if not for the reshoots -- then it would have made enough money to at least break even. And if it had been marketed effectively, it might have made more. That said, I do think the "fatigue" effect is correctly recognized as a problem, especially given how divisive TLJ turned out to be. There needs to be more time to build up some anticipation to these films, instead of just "Eh, whatever. I'll catch it when it's on blu-ray."