There is no vendetta. You just got wardecced and after having looked at the wardec report, you guys are clearly not making it hard for them.
Honestly, find another corp or tell the management to take down their structures if you know them.
Looking at the killboard it looks like just a group of new players getting in over their heads. You have the possibility to play in a wardec free environment now, yet your management does not seem to care about that.