There will be no response from SendGrid, imo. Last thing they want is an unstable employee suing them. Any company that makes it far enough and hires enough people deals with this more than once. But, it's always hard.

I doubt she wanted to get them fired, but her hyperbole (joan of arc reference, and her comment on her blog "Yesterday the future of programming was on the line and I made myself heard") and complete lack of remorse tell me there is a lot more going on her then a one or two 'off color' jokes.