If you scroll down to the part labelled "UNPUBLISHED RESTRICTIONS", you'll see that...
Intended for use by computerised journey planners and online booking systems.
To determine whether a journey is permitted, the time restrictions shown below are applied to:
- The origin and destination of the journey
- All locations where a passenger changes trains during a journey
-The final destination of all trains travelled on during a journey (whether or not the passenger is travelling to that final destination)
Note that these data can not be used to determine time restrictions when breaking and
resuming a journey at an intermediate station.
This restriction code does not apply on the following dates/days:
[...]
from Mon 2 May 2016 until Sun 8 May 2016 Eased on these days: Su Mo .. .. .. .. Sa
...which to my mind says no restrictions apply to this ticket on the forthcoming Bank Holiday, May 2nd.