Re: Mangue des baguettes.
Not sure why Jewish would ever be relevant, so I can see why that would be listed as potentially worrying. However I've worked in a call centre, and someone having a strong accent most certainly is relevant.
As is someone being a bitch, an alcoholic, etc - but it was normal to find more generic and acceptable wording. For example, "customer has problems accepting known resolutions to their issues, and does not indicate their doubts in a polite manner."