First thing is, "music journalist" is not a job of high rank at most newspapers, not a lot of respect, and tons of stuff that needs to be writtten in a short time, with little appreciation, either from editors or from the subjects of the pieces--

Second,most music writers got the job because it was what the editor needed someone to write, not out of either special interest or special aptitude, so they often know nothing about music at all-

Third, music journalists, like other journalists,usually just take press releases, CD notes, and what they are handed, make a few calls and a few internet searches, and write something that fits what their editor has asked for-- This means that more accurate the press release or press kit, the more accurate the press coverage--

Fourth is the object lesson--if you want good press, you need good PR, which is to say, you package up everything nice and hand it to the writer, then pray that they don't misquote--