Trying to clarify...
I think from my point of view, the difference between a 'skills based' curriculum and a 'knowledge / content driven' curriculum is about the way a child acquires knowledge, rather than there necessarily being a big gulf between the 'information' they are ultimately exposed to.
In a content-driven curriculum, prescribed by 'what a child has to know about', then the way a child will acquire knowledge about e.g. how a plant grows, what happened in 1066 will predominantly be by transmission of that information from an adult to a child - chalk and talk, at its most basic, death by Powerpoint in its modern version. To demonstrate that the child has 'achieved', they will be required to repeat that information in some form e.g. in a written exercise, by answering questions etc.
In a skills-driven curriculkum, the knowledge a child is to acquire may well be the same BUT there will be careful planning about what skills the child is to use to acquire that information. Are they the skills of listening? Reading? Evaluating evidence? Exploring sources? Carrying out a scientific investigation? Exploring a subject through drama? experiencing a real historical location? Reading accounts from different points of view and investigating evidence which might point to one or the other? The child will, in the end, acquire the same body of information BUT along the way they will also have had to demonstrate that they have particular skills as well as 'knowing' the information.
The tension, in a real-life classroom scenario is that the latter takes longer so the 'coverage' of areas of information will be reduced - although as the skills should be transferable, the child could apply the same skills to find out about other areas. E.g. a child may cover the Tudors but not the Victorians...but the same skills of exploring historical evidence, empathising with the views of historical figures, ordering events by date, noting cause and effect of particular actions etc can be applied to a different period.