In this case, the details really do not matter. Otto Raddatz was recissioned

[question everything]

in the middle of undergoing chemotherapy.

This is what the President said, in his speech to the Congress:

"One man from Illinois lost his coverage in the middle of chemotherapy because his insurer found that he hadn't reported gallstones that he didn't even know about. They delayed his treatment, and he died because of it."

http://www.whitehouse.gov/the_press_office/Remarks-by-the-President-to-a-Joint-Session-of-Congress-on-Health-Care/

From the WSJ:

In fact, the man, Otto S. Raddatz, didn't die because the insurance company rescinded his coverage once he became ill, an act known as recission. The efforts of his sister and the office of Illinois Attorney General Lisa Madigan got Mr. Raddatz's policy reinstated within three weeks of his April 2005 rescission and secured a life-extending stem-cell transplant for him. Mr. Raddatz died this year, nearly four years after the insurance showdown.

In a letter, Babs Waldman, medical director of the Illinois attorney general's office, excoriated the insurer, Fortis Health, which is now Assurant Health. Mr. Raddatz "suddenly faces not only life-threatening illness but now the inability to afford the only treatment that may help him," Dr. Waldman wrote to the insurer May 3, 2005... The patient's sister, Peggy M. Raddatz, testified before the House Energy and Commerce oversight subcommittee June 16 that her brother ultimately received treatment that "extended his life approximately three years."

(snip)

Another story that Mr. Obama used from the same House investigation squares with the testimony of Robin Beaton, who said she was dropped by her insurer days before a scheduled double mastectomy. By the time her insurance was reinstated, in part because of the intervention of Rep. Joe Barton (R., Tex.), her tumor had tripled in size. The president understated that in his address, saying it had more than doubled in size.


http://online.wsj.com/article/SB125314896131518267.html

It does not matter. The whole idea of recission is monstrous.