Honestly, Arsia, you’re beginning to sound a bit like those conspiracy people that write in to the letters page of Gutter Press.
Their usual nonsense is that it was an Amarr conspiracy, and that Marshal Valkanir was part of it, and she decided not to deploy Gunstars outside Amarr space.
I find it far more likely that the other three empires were reluctant to give political authorisation to deploy the Gunstars, due to uncertainty about their permanence, and that the decision makers were racist and/or misogynist towards Marshal Valkanir, because of her Ammatar background. And then their paranoia blew back in their face.