Eh, force multiplier on that one tiny grid. It literally has zero military value in this war. There's countless freeports that'd serve the exact same mechanical purposes, while being free and less conspicuous and obvious as a staging, etc. If anything, it's a resource drain since it gains me absolutely nothing. They only really have value in lowsec/nullsec in that regard, since there they can be capital staging points, safe logistics harbors and so on and so forth.
There's quite simply zero mechanical reason for any wartarget to ever be on that grid. Hell, given its other IC purposes, it's at worst a prick in the pride.
Also, it's a lot less powerful than it seems at first glance. Without a support fleet, it's fairly easily defanged fighter wise, which means you lose a sizable chunk of dps and can't hold down any enemies. Not going to claim it'd be an easy fight, but it's not quite as powerful as it seems on paper.
Vastly worse than POSes (if you have someone online to run the defense), utterly useless and worthless in an offensive highsec war because they provide nothing you can't get for free elsewhere.
Edit: Basically, all I've done is very publicly put up a 15-30b killmail for any war target to come claim, whenever they want it. It'll never be isk efficient. It'll never be a winning fight, as long as I'm as solo as I am. It's a super carrier without a jump drive, cloak or place to dock, and I can do nothing with it offensively. It's for all intents and purposes harmless.