I don't think selling more hardware is the primary motivation. The motivation is ensuring everyone has TPM 2.0 enabled on their device.
This allows Microsoft to protect parts of their software even from the user that owns the hardware it's running on. With TPM enabled you finally give up the last bit of control you had over the software running on your hardware.
This allows Microsoft to protect parts of their software even from the user that owns the hardware it's running on. With TPM enabled you finally give up the last bit of control you had over the software running on your hardware.