I don’t care who it caters to.
Not all events are for everyone.
If the deep space triglavian site bug has shown one thing,
then it’s that people are actually interested in this.
Reaching beyond the initial playfulness makes sense. There are people who don’t mind long travel times, or actually like them. Long travel times give a sense of space actually being big. The vast majority of systems feel small. It probably should be accompanied by a slightly more interesting warp tunnel, or environment during warp, but what the hell as long as it works.
In the end, I believe that as long as you, CCP, prevent people from making bookmarks or structures further out, this event should give you some interesting data in regards to player behaviour. Lock it down appropriately and let us have a week of this.
You could have all kinds of different sites, with different concepts, too. Some sites which require one player, some sites which require multiple players, some sites which are more geared towards PvPers. I don’t know, just throwing it out there.