Actually, let's look at this from a bit of a distance.
People don't like groups fighting Zoners because that impinges on neutrality.
Any sort of action on the part of the Zoners would mean there's hefty consequences from factions all around...
I have to wonder, though, if there would be any consequences from them attacking a group (as the best defence is a good offence!) that has openly declared war on Zoners. It seems as if there would be few net consequences if the group was openly hostile, as it supposedly is.
With Discovery's "guided roleplay," those minimal consequences could easily be nixed.