I don’t think it a good reason for junior offers to neglect improving their skills but over-reliance (failure to cross-check) on visual does happen.
The pilot checked the settings on the PPU and found that there was an 18-metre offset to starboard.
The pilot was unable to remove the offset so decided to discontinue using the PPU for monitoring the ship’s progress. Instead the pilot conned the ship visually and used the ship’s radar as an aid. The pilot did not tell the rest of the bridge team that he had stopped using the PPU.
From the report:
The bridge team were all primarily navigating by eye and not verifying that what they were seeing correlated with the information in the ship’s electronic navigation systems. All of the electronic navigation aids showed that the Leda Maersk was off-track and nearing the limit of safe water to port.
Report here
Grounding of container ship Leda Maersk Otago Lower Harbour, 10 June 2018
gCaptain forum thread here: Visual Navigation Implicated in Container Ship Grounding