Unremovable Spyware on Samsung Devices Comes Pre-installed on Galaxy Series Devices
(cybersecuritynews.com)
A new type of Android spyware that requires a password for uninstallation has been identified, making it increasingly difficult for victims to remove the malicious software from their devices.
The first sentence in the link that you linked.
So... you're technically right. It can be removed.
But not by the customer, unless they have an uncle who works at Samsung.