The problem is "no one was ever fired for choosing Jira" (or Confluence). I can't imagine there is a single company that would keep using those products the moment some alternative exists that managers dare to switch to without the slightest risk of having to explain to their managers why they didn't just go with the "industry standards".
I bailed out of the interview process last summer when the company told me they use Jira, Confluence, and Bitbucket for their source code.
Sure maybe nobody got fired for choosing them, but it certainly killed my enthusiasm for the potential position.