In both examples, the utility of TGN is: more effective support for the purpose of visual close study: interpretive visual engagement that develops understanding adequate to complex tasks.

See the contrast:

Presenting VCS equipment in the digital model (as TGN) and taking advantage of the visual capabilities supplied there, versus technical drawing in its traditional form that effectively supports visual close study of models only via drawing’s expression in-situ within MENTAL MODELS, through mental exercise only, unassisted by the digital modeled environment.

Failure to provide that assist is counterproductive, a baffling underutilization of digital models. One day the industry will look back and wonder how we could have gone so many decades without seeing that.