Moto E bootloader not unlockable?

I’ve just bought a Moto E and started following the install steps, which requires unlocking the bootloader. Problem : according to Motorola, that device is unlockable !!!
Did I miss something ?

The installation page indicates to follow the steps on in order to unlock the phone.
According to that page you need to register an account at the Motorola website in order to check if the Moto E is unlockable.
It might be, that the website which you linked is outdated.