Renault Zoe 50
Can you tell me why the PHEV’s electric miles are worth less than yours, or say a Nissan Leaf with a 3.6 kW charger?Obviously there is (currently at least) no rule against a PHEV being plugged into a public charger - but this is about what’s the most pragmatic, sensible, efficient and ultimately polite use of a scarce resource.
Lots of things in the world work better when people do what makes the most sense for the system as a whole, rather than what would be most beneficial for them personally, even if there aren’t specific rules requiring such behaviour.
Instances of an EV driver looking to use a charger, not being able to because a PHEV is plugged in, but finding the PHEV owner hanging around so that an EV driver can politely ask them if they can please use it are going to be extremely rare. Almost always the PHEV driver will have gone off somewhere for a few hours.