Thank you for showing some insight and compassion and sanity to these people only wanting to destroy anyone that they believe, without cause or evidence, to be an "evil enemy".
The vast majority of preperations are made way before death. They update the eulogy time to time. Newspapers do the same thing especially when the person becomes old or sick. Once the person dies, there is little left to do. The people invited are generally able to take immediate flights to DC. its not like a normal funeral.