Nest Presence Device Has Many Events

I recently enabled the Nest Presence Device on my hub. I have two thermostats and seven Protects. The presence device works correctly, following the Nest home / away status.

I'm concerned because I took a look at the Events for the Nest Presence Device (on the device page). I found the presence changes, as expected, but I also found many more events named "lastUpdatedDt". These seem to happen at the rate of approximately one per second, and sometimes faster.

Is this expected?

Thanks for any insights.

-Scott

More of the bugs I have found and fixed.

Still need to figure out how to get updates into HE team.