Yeah, but they might live for another 6 months, or 18 months. They might see there kid graduate or get married or met a grandson in that time.
Also, a close family friend was given 6 months to 3 years to live when her cancer spread through her body. It's been 10 years. She is getting sicker and sicker and on chemo the whole time, but she is still managing to attend the odd family function when she is feeling up to it.
This shit isn't a game, these are peoples lives and we need to make sure they can live it even if it means a few less unicorn start ups.
This happens today, the only difference is that it's paid for indirectly and inefficiently by everyone's taxes, rather than directly by insurance.
But you can't actually do anything about it, because that would mean "death panels" and lost elections.