Surely it does: you have much more combinations in animated GIF than static GIF ...

pulse7 on March 8, 2017 | parent | context | favorite | on: An animated GIF that shows its own MD5

Surely it does: you have much more combinations in animated GIF than static GIF so it is easier to make "unvisible" changes to the file to get the MD5 hash displayed on final GIF slide.