No kidding. At least the novelizations of the pilot had a script to hew to, instead of having to try to characterize rather ephemeral characters.Writing a novel about characters that later pop up on TV ... that's really got to be a tough overlap for a writer.
It also didn't help that the writing staff went through constant changes from very early on in the first season, so that ideas for the characters in the original series bible (which was Carey's only reference for Ghost Ship aside from the pilot script) ended up falling by the wayside as the replacement staffers (or Roddenberry and his lawyer) took the characters in different directions. The original bible did say, for instance, that "Bill" Riker would have an ongoing difficulty adjusting to Data's inorganic nature, and it's not Carey's fault that the show itself abandoned that after the pilot.