In 0.0 you simply get there in your ship and start ratting which gives you instant cash (well every 20 minutes) which no one can deny you. And if you get killed you have ISK to buy a new ship. And said newbro either does it ninja style or he joined a corp/alliance which enables him to do that safely by “protecting” him.
Your FW idea means you will have to put a lot of work into trying to capture the system and you need a lot of ISK to buy enough ships to fight for the payout which can be denied by the opposing force.
And how would the game figure out how much LP each FW member would get? Would any member of teh millitia get the same payout? Or would only the guys who actually took part in the final battle get a payout?
If people who are mainly interested in FW PVP will have to start ratting, running missions or even mining, it will make it even more unattractive for newbros. LP is what gives you ISK to be able to supply yourself with ships to keep on going. I wouldn´t o-plex for a huge amount of hours for the slight chance to get a reward at the end.
If ratting in null would be changed so the bounty only gets paid out once a month and be tied to the fact that you are still part of the sov holding corp/alliance and sov hasn´t changed, people in null would go cry out loud.
PS: I like how you are asking about feedback and then act like I am an idiot, who doesn´t know that there are multiple ways to earn ISK.