Do Comedy Central Roasts go too far?

When I found out that Patrice O'Neal died, the first thing I thought of was Comedy Central's Roast of Charlie Sheen. Roasters took turns dishing it out to everyone and Patrice's diabetes was the main assault on him. I never realized he actually did have diabetes until his death today. It makes me wonder if there is a line that should be drawn during these roasts. This isn't the first time that topics like death have been brought up during roasts. The death of Steve-O's best friend Ryan Dunn was joked about and so was Greg Giraldo's during the Roast of Donald Trump.
In my opinion, these Roasts are meant to be as offensive as possible, so anything is fair game. If you walk into one of these roasts prepare for some low blows. Jokes like these outside the roast aren't appropriate, but once you agree to one of these things that line between funny and mean disappears.

http://www.eonline.com/news/rip_patrice_oneal_ricky_gervais_dane/277408