They also have plenty of scare words:

MOTOROLA STRONGLY RECOMMENDS AGAINST UNLOCKING THE BOOTLOADER AND/OR MODIFYING OR ALTERING A DEVICE’S SOFTWARE OR OPERATING SYSTEM. DOING SO CAN HAVE UNINTENDED, UNFORESEEN, AND DANGEROUS CONSEQUENCES, SUCH AS RENDERING THE DEVICE UNUSABLE, VIOLATING APPLICABLE LAWS, OR CAUSING PROPERTY DAMAGE AND/OR BODILY INJURY, INCLUDING DEATH.

And don’t allow you to sell the phone later on:

Devices that have been unlocked are for your personal use only. Once you unlock the device, you can only use it for your personal use, and may not sell or otherwise transfer the device