Here is the actual definition of L5 with notes and an example. I think it is very clear. I find the example to very clear. I am not sure where the confusion is.
p 25-26:
5.6 LEVEL or CATEGORY 5 - FULL DRIVING AUTOMATION
Definition: The sustained and unconditional (i.e., not ODD-specific) performance by an ADS of the entire DDT and DDT fallback without any expectation that a user will respond to a request to intervene.
NOTE 1: “Unconditional/not ODD-specific” means that the ADS can operate the vehicle under all driver-manageable road conditions within its region of the world. This means, for example, that there are no design-based weather, time-of-day, or geographical restrictions on where and when the ADS can operate the vehicle. However, there may be conditions not manageable by a driver in which the ADS would also be unable to complete a given trip (e.g., white-out snow storm, flooded roads, glare ice, etc.) until or unless the adverse conditions clear. At the onset of such unmanageable conditions the ADS would perform the DDT fall back to achieve a minimal risk condition (e.g., by pulling over to the side of the road and waiting for the conditions to change).
NOTE 2: In the event of a DDT performance-relevant system failure (of an ADS or the vehicle), a level 5 ADS automatically performs the DDT fallback and achieves a minimal risk condition.
NOTE 3: The user does not need to supervise a level 5 ADS, nor be receptive to a request to intervene while it is engaged.
EXAMPLE: A vehicle with an ADS that, once programmed with a destination, is capable of operating the vehicle throughout complete trips on public roadways, regardless of the starting and end points or intervening road, traffic, and weather conditions.
