It isn't a prejudice if you don't want to support a company with such a history. Azure could be the best cloud host for all I care, I still wouldn't use them.
In any case, I have no issue with listing them as an option, not everyone feels the same way I do.
Prejudice against people might be something which is contemptible. Prejudice against corporations is not something to be ashamed or concerned about. It means their brand sucks (as in the perceptions of customer), probably because of past behavior.
In any case, I have no issue with listing them as an option, not everyone feels the same way I do.