Preventing access to data is the whole point of encryption. TPM stores the key to the drives attached to the machine, effectively tying the keys to the device +

Preventing access to data is the whole point of encryption. TPM stores the key to the drives attached to the machine, effectively tying the keys to the device + drive combination. (Doesn't Apple do the same?) And if you're afraid of being locked out, you have backups elsewhere, right?