This. If there's something that disrupts the flow of the plot and removes the viewer from immersion, that's worthy of criticism. That's the ultimate rule: does it affect the viewer's experience? I don't really have these moments with many Disney/Pixar films.
Some will argue that the giant eagles in LOTR could have just dropped the ring into Mt. Doom from the get-go, but then you miss out on the whole journey, and the audience would never be invested in the ending.
But on the other end of the spectrum: Battlefield Earth is beyond repair. Fighter jets stashed away for thousands of years are somehow capable of working? That's hard to sell. It's an unintentionally fun movie to watch as a train wreck B-flick that you can't take seriously. Travolta thought this was a serious Sci-Fi film and Scientologist bigwigs were insistent that this film was going to be a box office success. Independence Day has issues but I think it's a much smoother experience and far more enjoyable, despite it's quirks.