Dunno what’s the fuss about this fixing of an obvious bug, by the way… Maybe some crybabies whining that they can no longer abuse it? 
Your view is… peculiar, but even in it the card is supposed to ‘kill itself’ (or, more precisely, to be killed by FDOS, actually) ‘after attacking’… i.e., provided it surives.
Consider an abstract example to illustrate the analogy. Billy goes shopping, but Joe shoots him smack in the head. Billy dies. Then at court Joe’s lawyer presents the following reasoning: ‘My client is innocent, since ultimately Billy died because of his mortality, not of Joe’s bullet, and it’s Billy’s mum who borne him this way, so she should be accountable for this deed, not Joe, right? Right?’ Well, apparently not: Joe with his bullet still took the credit before mortality claimed, so to speak, poor Billy by natural causes… More or less same logic with this card, if you just read its text.
But that’s not even the most remarkable point about all of this. First, they release arguably one of the buggiest patches ever in this game’s history, then some bugs are fixed (I’ve not verified that lorebooks have been finally fixed, but that sounds like great news, actually) — hey, now’s the time for a POSITIVE OUTLOOK, isn’t it? Wouldn’t it have been better to not release such a buggy one in the first place, though? 
I’ll leave it to ol’ Boba to name this partcular scammy marketing trick, perhaps, since I don’t remember and can’t be bothered to look it up.