Sounds like too many similarities to be coincidence.
Orphan's living in a lighthouse on a rocky area (be it island, or penninsula)? The only other game to have a satelite dish (or whatever it was) on a nearby mountaintop is Dollet, that I know of anyways. Aliens falling from the moon? Those, and the other similarities listed above make it pretty obvious.
I've never even heard of BGE, let alone played it. But if what FE is saying is true, there must be some sort of inspirationfrom FFVIII. Unless BGE was released before FFVIII, or if they even began developing it before FFVIII (and perhaps it got delayed), then maybe FFVIII stole the ideas from (or was just inspired by) BGE![]()
I'm purely going on speculation here. I know NOTHING about this game (BGE), aside from what's written in this thread. But like I said, there's a little too many similarities there for it to be coincidence.