Flutter team member here. Valid nitpick, and I can confirm that we scrub any personally identifiable information (PII) from our telemetry, so while the IP is sent over HTTP, it's not stored in our system. We even go so far as to scrub the exception message, since it may contain PII.
More information about our crash reports can be found at https://github.com/flutter/flutter/wiki/Flutter-CLI-crash-re...