Maybe that's why Obi-wan jumped back into action. He felt something, unsure of what it was, decided to find out.
Han had bigger problems at the moment. (Although him hanging out on the same planet as Jabba never made much sense)
As far as Evazan and Ponda they never mentioned Jeddha cause they were assholes, what did they care?
The destruction of the 2 cities was probably knowledge kept secret to the Empire, and only known to the Rebels at the event. It would be even harder to find rebel recruits if you started your recruitment pitch with, "Oh and btw the Empire has a Laser moon now that can blow up planets, and shit. Still wanna join?"
Obviously the official desolution of the Senate at the beginning of New Hope was a result of the successful demonstration of the Death Star.
Oh yeah, Obi-wan did jump to action for Leia. But, maybe he still felt the actions on Jeddha. (Maybe he had been feeling the effects of the Empure's genocide for so long he thought it was more of the same.) Until Alderran, of course.
As far as Evazan and Ponda maybe nobody talked to them at the Cantina. They obviously liked to pick fights. Everyone else was there to lay low, find mercenary work, or catch a bounty. (like Greedo, making Han' s presence even MORE baffling)
Maybe they discussed the Death Star offscreen in New Hope, but dudes like Wedge were still surprised when they seen it for themselves. But wasn't Wedge mentioned in passing in Rogue One? Was he at that battle?
If only the writers of these movies cared about the little details as much as the fans.. But, I guess they don't have to, because we're gonna watch them regardless.
I'm still holding out for Darth Vader film that occurs between New Hope, and Empire. Its a perfect set up. Marooned Vader fights his way off a planet. It would be a great flick, Storyline inconsistencies, and all.
The Death Star was built by Geonosians around Geonosis. The Empire then gassed the entire planet, wiping them out, to keep the Death Star secret.That actually sound fairly reasonable. I still think they would have a hard time taking the two death Star attacks secret much less being able to build a moon sized space station without anyone noticing as it must have taken millions of workers, millions more droids, and a small planet worth of resources.
I would pay money to see a movie about Vader between episode four and five.
So the recent run of Darth Vader comics took place between New Hope, and Empire. I'll have to pick that up now I suppose. Still, a spin off solo movie would be nice.