Yes they were very, very tasteless.

But seriously. I've read similar tweets like that from comedians in the past (one of the reasons I stopped going on twitter). It's just shock value humor. Come on, we've all met people in the past that said shit like that just to get a rise out of people, that whole 'it's funny because it's awful and people nervously laugh at it' humor.

It was juvenile though. I'm not excusing or condoning it, but dude was really trying to be funny, that was all.