> Besides, even if this feature only saves a single life, seems worth it to me.
Not that I think it will only save a single life, but if that really were the full extent of its benefit that of course it wouldn't be worth it - think of the millions Apple have spent on R&D plus the (presumably tiny but it adds up when selling millions of devices) extra cost per device - there are many ways that money could have been spent as a PR move by Apple to save thousands if not millions of lives.
Not that I think it will only save a single life, but if that really were the full extent of its benefit that of course it wouldn't be worth it - think of the millions Apple have spent on R&D plus the (presumably tiny but it adds up when selling millions of devices) extra cost per device - there are many ways that money could have been spent as a PR move by Apple to save thousands if not millions of lives.