Eh, some folks like peanut butter and chocolate and because of that Reese's makes a mint every year. But substitute in almond butter and carob for the "adults" and I doubt they sell nearly as many. There's nothing wrong with some junk food or "junk" movies.
While I am well aware that real life (tm) is full of gray and grey morality, I personally felt that Rogue One lost out by omitting the black and white morality of the original trilogy. By drowning us in the moral morass of anti-hero-ness (is that even a word?), I didn't feel as much of a connection to the cast. Not to mention that the direction seemed to be, "Be interesting but don't let the audience love you. We don't want them to feel sad when you all die." I mean, really? Make me HATE the empire. Make me want to tear it down with my bare hands. Make me understand WHY the morally gray, depressing reality needs to be in my fantasy film AT ALL. Do, that, and I can forgive a lot.
And let's not get me started on the plot holes (Hey, Hollywood, rewriting a film WHILE filming it is a bad idea.) or the lack of motivation in spots.
Nonetheless, it wasn't all horrible. The Corvette scene was AWESOME. As were the small scale fighter battles.