Interesting question. When it was introduced the LST "raw data" requirement was to assess a pilot's ability to fly an approach from standby instruments. We term flying with the flight director cheating
...I mean manual flying.
On line it is good to practice manual approaches (with the FD only on NHPs side) as it does help to keep HPs scan up to speed... without loosing protection of the magenta. Also keeps NHP in the loop.
The CAA have published a number of papers where they express increasing concern about operators discouraging manual flying. It is a degradable skill and if you don't use it ....you will loose it...twice a year in the sim does not cut it. The less experience you have the more this applies.