After Remove-MobileDevice, Get-MobileDevice and Get-MobileDeviceStatistics display different GUIDs for same device

So I'm working to cleanup stale mobile devices using a script and Remove-MobileDevice but before I do this, I ran a test with my active mobiledevice to test the experience should one of the stale devices reconnect.  

Before I started, I ran Get-MobileDeviceStatistics to get my device's GUID that I then used in Remove-MobileDevice.  I successfully removed the mobile device.

My hope was my phone would simply reconnect when finished, and it did as I can see it still pulling down email.  But here is my problem.

When I run get-mobiledevicestatistics to verify my device is still syncing, it still lists the same GUID as the device I previously removed and if I try to run get-mobiledevice with this GUID it fails.  So I ran a Get-MobileDevice using the same Identity and show the GUID there is completely different.  How is this possible??

[PS] C:\scripts\Exchange>Get-MobileDeviceStatistics -Mailbox "MyUser" | sort-object -Descending lastsuccesssync | ft lastsuccesssync,devicetype,deviceid,deviceuseragent,guid

LastSuccessSync         DeviceType      DeviceID            DeviceUserAgent                     Guid
---------------         ----------      --------            ---------------                     ----
9/4/2018 2:28:29 PM     SamsungDevice   SEC<redacted>5784   Android-SAMSUNG-SM-G950U/101.80000  05d5c314-82eb-45db-a041-e7afccf146fe


[PS] C:\scripts\Exchange>Remove-MobileDevice -identity "05d5c314-82eb-45db-a041-e7afccf146fe"

Confirm
Are you sure you want to perform this action?
Removing mobile device "<redacted>/MyUser/ExchangeActiveSyncDevices/SamsungDevice§SEC<redacted>5784". All information about this mobile device will be removed. It must be re-synchronized.
[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [?] Help (default is "Y"): Y


[PS] C:\scripts\Exchange>Get-MobileDeviceStatistics -Mailbox "MyUser" | sort-object -Descending lastsuccesssync | ft lastsuccesssync,devicetype,deviceid,deviceuseragent,guid

LastSuccessSync         DeviceType      DeviceID            DeviceUserAgent                     Guid
---------------         ----------      --------            ---------------                     ----
9/4/2018 3:47:17 PM     SamsungDevice   SEC<redacted>5784   Android-SAMSUNG-SM-G950U/101.80000  05d5c314-82eb-45db-a041-e7afccf146fe


[PS] C:\scripts\Exchange>get-mobiledevice -identity "<redacted>/MyUser/ExchangeActiveSyncDevices/SamsungDevice§SEC<redacted>5784" | ft identity,guid

Identity                                                                        Guid
--------                                                                        ----
<redacted>/MyUser/ExchangeActiveSyncDevices/SamsungDevice§SEC<redacted>5784     0b30ecec-3e53-4f6f-af21-98cce50edc41