Very disingenuous. It's a matter of a government-led panel allocating government funds. If the family wants to keep treating Grandma indefinitely, that is absolutely their right ... if they do it on their own dollar.
The "death panel" bit is just the question of how long the government would have continued to pay benefits.
We're not always talking about vegetables on life support here. There's a lot more to care of the elderly. My 93 year old grandfather recently got a hip replacement and he's doing great. Would he have received that hip under the ACA? Recall that a woman asked Obama a similar question and he said maybe she should just take a pill.
Who paid for that hip? If he did, or you did, or any other private party did; then it would work exactly the same! The question here (death panels) is only about what the government would have paid for. Since the government has finite money, it must decide what it will and will not pay for. There is not enough money to pay for everything. Decisions must be made.
We could have a situation where it's possible that you were paying for a plan that would pay for your hip, but the government decides to dissolve that plan and force you to buy a new plan that's not allowed to pay for your hip.
The "death panel" bit is just the question of how long the government would have continued to pay benefits.