Writing the planet bios is still one of the most painful exercises I've had to do in nine years working on the mod.
It's fine when you're dealing with locations that have appeared multiple times in canon and actually *have* some measure of detail, but a lot of the planets in the mod are there for [insert specific scenario] and as Greystar says, the information about them is literally "This is a planet, it has a name and something happened here once".
With regards to referencing contemporary events we have included a measure of those across the mod where appropriate, including references to the Thrawn campaign (sans death) in Bilbringi's. As DarthRevan rightly points though, out depending on the GC you are playing those might actually be future history which is slightly awkward.