I don't know where they could fit Skywalker tho, if they wanted to delay it to 2020.
Sure, but it's just emblematic of scheduling things in fixed production limits regardless whether they'll be ready to shoot or not and Episode IX was arguably the trickiest to do of all 3 sequel trilogy movies.
The problem with Star Wars is that there is a limited range of stuff that makes Star Wars Star Wars: lightsabers, the Force, the Jedi, the Sith, the Dark Side, etc.
Venture outside of those narrow confines and you get derivative "homage"s like The Mandalorian with its thinly-slapped-on Star Wars skin, without which it could be just as easily be any generic sci-fi show.
That's probably the dilemma that all the writers who tried tacking the Kenobi series couldn't solve: the fundamental question of why.
Yeah, the Star Wars universe is small, very repetitive, very superficial with a very limited number of elements that both the films and tv shows have decided to explore. At this point, it is 100% nostalgia and paper thin. Even the idea of an Obi-Wan tv show by itself is in principle just retreading water by trying to hook people with stuff that's familiar to them. Giant doomsday space stations with lasers, people in black armours and capes and a bunch of neon-lights on sticks. That's what Star Wars is and always was: a bunch of toy commercials for kids to make up their own stories with their own toys.