Cyborg/Bumblebee is not a bad ship, it/its shippers just have a bad rep in the fandom. Genuine Cyborg/Bumblebee shippers, who legitimately care about Cyborg and Bumblebee as characters, make great content. Other shippers, who force Cyborg/Bumblebee in their works as an afterthought and don’t truly care about the two of them as characters, are the ones who create the mediocre/annoying content the ship is associated with.
By blaming genuine Cyborg/Bumblebee shippers or Cyborg/Bumblebee as a ship, it not only ignores the real problem of the overall fandom treating Cyborg and Bumblebee as disposable and not worth as much love or attention as other characters, but it scares away actual fans of theirs from interacting and sharing their works.