Odd, the home command station is immune to vampire claws? When did that happen?
Quite a while ago (months ago) vampire claws were zooming in and popping my command stations left and right, made me somewhat paranoid about them and then they get nerfed at some point and they are just cuddly little bunnies now.
Well, not quite but they are nothing like they used to be.
On the home forcefield generator, it is supposed to be a "oh crap, something slipped through" last line of defense, not a primary defense which is why I am okay with it's current health.
Which is why ships that bypass it are the big problem in my opinion. If enough ships get through to flatten your home FF and kill your command station that just means the AI won this game. However if a single ship at 15% hp slips through and takes out your home command because the rest of your fleet is fighting at the wormhole that's not really a win for the AI, that's just cheap. (Well, in my opinion.)
I don't actually know how the targetting works but is it possible to change the targetting priority so that the home FF gets targeted before the home command? That might be all that's needed here.
D.