IMG is not requesting anything in Delta. This is also not about getting Iridium, relax.
But we roleplay. And yes, IMG and some other factions are going interventionist in this scenario. I do not see how you can complain about that.
Plus: You cannot "stamp out" rp. Nauru will be a correct depiction of a planet that has an internal conflict in which outward powers decided to intervene. Happens hundreds of times at the moment on earth, so I fail to see the problem. I know you would love to have no rp about Nauru, and just be able to assume "100 % Core", but no, that's not going to happen - as we have discussed before, and devs and Admins have also said that.
So, relax. Roleplay. Could be a recipe for making Core better, by the way.