If she was merely a developer or other non-public-facing employee, there would be no reason for her to lose her job. But she was a developer evangelist -- someone who should know that everything she says and does reflects on the company -- and even if you agree with her actions you can't deny that the storm surrounding them would make it nearly impossible for her to effectively work in a job which involves meeting and working with developers.
By that standard, people who make sexist jokes should automatically get fired, because it makes it much more difficult to effectively work in a job which involves working with women and male allies.
