Minovsky Physics do not work that way.
Sometimes in a Speculative Fiction setting, the author takes the time to lay out hard-and-fast rules on how the setting's Applied Phlebotinum or Functional Magic works. And sometimes they then proceed to do something contrary to that. Maybe it's a new author who takes over and doesn't completely understand the rules. Maybe the author just goofed. Regardless of how it happened, what they did violates established rules of the setting. The Rule of Cautious Editing Judgment is in effect here: this is not a trope for complaining about retcons.