If you're using these keys as part of a disk encryption scheme, you may find that your government deems this to be an illegal attempt to prevent yourself from complying with search warrants (even if you're not suspected of any other crime).
This is a bit FUD-y. TPMs are key stores, the same as what Apple calls a "secure enclave." When you activate a device with a service like Netflix or a software like Windows, they stick their key in the TPM. As a user you can clear of disconnect the TPM any time you like - you're in control of your device. What you're not in control of is Netflix and Windows - Netflix and Windows are only going to authorize 5 TPMs. If you reset your TPM, you're going to need to re-enter your license information.
To me, operating with a well designed model, when and if I choose, with the ability for me to shut it down at any time - that's control.
1. Under no circumstances would they ever be sold with any private keys already on them
2. There would be no way to prove or determine after the fact whether a given key was generated internally or imported from an external source
If those two things were true, then you'd still be able to get 100% of the legitimate security benefit of them, but they'd be completely unusable for DRM and other evil things.