Is it correct of Disney to cancel Roseanne's show and punish the cast for her stupidity?

I think she was fired as much out of Disney's embarrassment of her success as what she actually did. They were not comfortable with the show to begin with. Great ratings or not, this gave them the excuse they needed to drop it.

She has always been a crude, disrespecting, irreverent, performer and Disney knew it when they brought her back.