When testing on a Lenovo and the following folder is present, the Test-DISMFromOSDCloudUSB function enumerates to True, even though a $ComputerProduct sub folder does not exist:
E:\OSDCloud\DriverPacks\DISM\Lenovo\

This is due to "PackageID": null, statements in the Lenovo DriverPack Catalog

Causing line 30 to fail to complete the path:

And line 41 to return True