Of course not. If a company's execs fired someone based on anonymous comments that could easily have all been made by a single person with a vendetta, it would be one of the most ludicrous things I've ever heard. What is far more likely to have happened is that they were blindsided by the backlash and it made them scrutinize him & his actions much more than they normally would to see if the comments were legitimate or not. Apparently it was decided that they were.