SEPM - Block all HID devices using GUID unsuccessful for keyboard

Attempting to block all HID (Human Interface Devices; keyboard, mice, etc) via GUID.

In SEPM we blocked using the baked in GUID called "Human Interface Devices". It successfully blocked the mouse.

However the keyboard, a Dell CN-0N6R8G-PRC00-83U-00CZ-A03, still worked.

Went to device manager and verified the GUID Class ID for the keyboard was the same as the baked in HID we blocked in SEPM:

{745a17a0-74d3-11d0-b6fe-00a0c90f57da}

Any ideas why it worked to block the mouse, but not the keyboard?

Any ideas to remedy and block the keyboard too? We want to block all keyboards, not just this specific one. We want to block them all to create a whitelist of approved devices.

Thanks