your right, it will depend a lot on the area of space. However I actually see this being better for smaller organizations that border super powers. particularly in NPC null.
For example, in the pocket I live in, there are several small corps. and there are also a good number of moons, however most (if not all, its been a while since I checked) of those moons are “owned” by a nearby group.
Even if all of us banded together, we can’t possibly take them on, couldn’t even take out a tower without being dropped on. and there isn’t even much we can do to disrupt their cash flow, since all they need to do is slip a blockade runner through once a week or so. and they can do that any time they want when its quiet.
but with the new changes, taking out a citadel wouldn’t actually be required. not only would they need to organize mining fleets to travel outside their home area. but we would also have a window for when those mining fleets would be coming through.
and its a lot easier to drop some bombs on a mining op, particularly one you know is coming than it is to try and intercept a lone blockade runner that could come through whenever.
What that means is it will be much more inconvenient for the large group to actually sit on those moons. it gives more opportunities for us to be a thorn in their side and disrupt their moon activity. which in turn means a greater chance of taking those moons for ourselves simply by making them more bother than they are worth.
now that is only one example, from just one tiny pocket of space, but I have a hard time believing that a situation like this is completely unique. no it will not allow smaller entities to stand toe to toe with the big boys. but it will give more opportunities for them to be a thorn in their side, which is often all it takes to carve out a space for yourself.