This is halfway possible. It wouldn’t be terribly bad to build something that lets you connect your Flair account to see the current vent status.
History is another thing entirely and is not feasible at this time. Maintaining vent history would require constantly polling the Flair API for vent status which would get excessive very quickly. It’s not so bad with ecobee because they store the history and expose a way to get that data in bulk.
Make sure to hit that vote button up top. I wish I had more time but I have to pick what gets added based on what people want to see. Thanks for the suggestion!
Have you reached out to Flair to see if there are any options for a feature request on their end? They might not be keeping a historian because no one has asked, or it may be a database storage issue. They are a rather small company in Utah.