The three Disney films all share the same flaws. Rogue One had a decent third act but that didn’t redeem the first two acts. They should have avoided EU-style tie-in stories and simply done a separate Rogue Squadron film. That’s what I’ve been dying for since ROTJ, more adventures set in the Galactic Civil War era but separate from the OT heroes.
That’s exactly what RO is. Yes, it does tie in to ANH, but it still stars entirely new characters.