Well, just remember that “close” is quite relative when dealing with a map that covers an entire galaxy.
Yeah, I get that. It is just further shrinks the Star Wars galaxy. I understand the need to have Scarif near Tatooine in order for the events of ANH to kick off.
Well, it isn’t exactly a very detailed map. There’s definitely a lot of planets in between the ones that’s listed. I imagine that the SW galaxy, much like our own, has billions of planets in it. And only a very, very small amount of those are populated, and of course the future of the EU will undoubtedly introduce many new worlds, so many simply remain ‘unnamed’. So it’s not exactly like Tatooine and Geonosis are just sitting there is space next to each other. And even if that was the case, the space between them would still be too vast for anyone on each planet to really care about the other, unless they specifically had a reason to travel there. But, again, the map above only lists the most relevant planets to casual SW fans (most of them are movie locations, with a few species- or TV-relevant worlds). I mean just look at this map from Legends canon.