I would have thought it would be fine, goats milk is lactose reduced so I would imagine the cheese is similar. Tiggy used to eat huge blocks of cheddar cheese with no ill effect so I'm sure a dollop of goats cheese will do Blip no harm (although she may develop a taste for it!).
If she prefers the Primula do you have any 'Tesco Express' near you? They sell Primula tubes in all my local ones.