It IS sad, that's for sure. I don't put all the blame on the mother though. The ed, obviously, did things to aggravate the situation over the years, from what I'm reading, like naming a child for a relative that her em hated. I get the sense there was a lot of tit for tat over the years and this was just the final one.
I do blame the em for how it started though. Ed was 17, which says to me that em had more responsibility for what happened - she was supposed to be "the adult." If she would have accepted ed's choice of bf and, eventually dh, things would never have gone this far. Maybe she could have even helped them out a little. I don't mean "enabling," but perhaps watching the kids so ed could work or providing money for the downpayment on a home. It probably wouldn't have ended the way it did if it didn't begin the way it did.
But I agree it's good we can still leave our money to whom we choose. I'm also glad the ed got something, if only for the sake of the gc.
But it IS sad. It certainly IS.