If there is some doubt about accepting these hours towards a Part-FCL PPL (and the 'CAA says 10 hours only is a new one on me!), all such hours, if properly recorded, certainly would count for the NPPL. Bloggs can then upgrade his NPPL to either a LAPL or Part-FCL PPL by following the conversion requirements in CAP 804.
The NPPL would need to have been obtained before Apr 2018; it can converted as required even after that date.