Everybody knows luke, leia, and obi wan are going to be ok in the end so how much tension can you possibly generate? I think this is why a lot of the disney people are saying they're giving up revisiting old characters...
I think there's a formula (not sure if Disney has found it yet) where you can tell an exciting story without the hero's death being part of the action. Obi Wan did ok, but there were times where not knowing if some of the characters made it to tomorrow would have made the scene so much better.
I think if they just dumped the entirety of the series out at once (a la netflix) the writers wouldn't have to fit things into neat little 40 minute boxes and have some of the episodes rely on situations where knowing the future of the character takes away from the overall action. OR stick with episode / week but write a story that doesn't utilize the peril of the protagonist as the main focus.
People love picking these stories apart and I get it, wherever most people started with Star Wars was the pinnacle for them and everything outside of their beloved trilogy / entry point just can't live up. Personally, I consume it all and love it all. Some are far superior to others. For me, its nice to see something outside the formula of David vs Goliath, and BIG World Ending base, ship, fleet, vs small band of hopefuls and the fleeting task of taking it down. But really, i love it all, outside of those stupid droids cartoons, ewok movies, and the christmas special so bad you have to really search it out.