I've seen it happen on the A-300, the L-1011 and the 747. You do have to use it as a guide, always keep the raw data in the scan as well!
Easier said than done. Let's face it - your eyes are glued to the FD needles on an ILS and the only way to scan raw data info while locked to the FD, is to have the standby ADI ILS in view during the approach. As far as "looking behind" a FD display at the little aeroplane it hides so successfully, -well that is well nigh impossible less you lose concentration on the FD needles.
You have only to see how poorly some pilots fly raw data non-automatics to see they have been locked on to the comfort of FD's for most of their current flying experience. Meaning they were unable to keep the raw data in the scan.