Pretty much lol... I have the BoatXFX, and use Security Torx screws in conjunction with them, and while I do agree they are better than the plastic Dura Safes, they (and any gimbal lock) are easily defeated by either removing the gimbal mounting bolts, or Sawzall'ing through the gimbal itself even. For a time, I ran a padlock through the BBT Gimbal and Mounting Plate on the bow but haven't bothered in a while.
In the end, these are all just visual deterrents for the quick grab type thief. If someone comes to your boat prepared to rip you off, there is nothing you can do about it really.