They mentionned it in the article, this is required and only used by the third-party bug-reporting service (instabug)
Instabug cofounder here.
I'm always amused when there's suggestions that a company like Cloudflare could in any way benefit from that. To recap, the company that has access to your DNS queries would embed a Microphone spy in their Android app, for a short period of time, risking their massively profitable enterprise business, just so they could shadily resell the few days worth of data they may have gotten for that.
There's so many good conspiracy theories to think about. Why would you choose this one?
Uhh no.