Actually, they are correct, Lily isn't being honest, and it's already happening in Elite Dangerous right now. RoA, you go into the systems they claim in Open, they'll kill you, simple as that, they've been up front about it too. They aren't the only group doing that in Elite Dangerous either, we also have groups who go to every CG simply because they know they can find lots of unarmed trading ships to gank, that's their entire reason for being at them, ganking, nothing more, nothing less. The CGs will be hundreds to thousands of light years from their home systems, so it's not like they are defending their own turf or something. Smiling Dog Crew has been rather active at this as has The Code, going where ever there is a CG and actively ganking people just because they can and they find it amusing.
Now, the groups defending the area they call home, or pirates operating out of a central system and hitting the systems with a radius around that, understandable, acceptable even wanted to an extent by David and probably most of us over all. But those groups needs to be giving warnings, not just ganking a single T6 with 3 wings of Pythons and Anacondas as is currently done by many of them.
Naturally, we can all bypass that by simply playing in Solo or Group, but many of us WANT to have some interaction with other players so we try to play in Open as much as possible, but we shouldn't HAVE to switch to Solo or Group to avoid this kind of behaviour, you may consider it fun to be ganked by multiple wings of big ships who don't say anything and just destroy you, I don't, most people don't, we find it annoying to be polite about it.