It isn't really just about Sansha. It's about the fact that CCP very rarely offers anyone outside of the main empires time to join in the fun.
Faction Warfare? "All the factions get to fight" Well, no. Not really, only 4 of the eight or nine or so factions actually get to fight.
Events: Forget you, pirate corps/alliances that are aligned with various pirate factions, you don't get to help your entities along.
The thing about EVE is that it's a perfect PvP venue. Everything is PvP, even the PvE (you're competing for resources and markets) and the mining. So why would you not use these events as a good reason for highsec empire players to get some solid PvP going with people?
It would make the events more interesting, because let's face it even hundreds of NPC ships that are not smart are not overly difficult to combat, it's just a longer fight. Throw some PCs into it trying to stop you from fighting off their favored faction? Now you've got something going.
Boo on the event team.
Boo.