Are you absolutely sure about that, since people report that a region went from Good to Very Poor?
Maybe there is a bug in play that this intended function of the system doesn't work?
Our certainty level is high, but the possibility of bugs or data errors should never be ruled out. If there is a discrepancy, please note it in the bug channel on Discord with as many details as possible demonstrating the issue including time stamps and regions. The team does not look at reddit for bug reports unfortunately. Thanks.