It's an interesting point about the C2s dd. I wonder if one of the problems is that the NRS scale is completely out of date and it needs some bright researchers to do a lot more work in this area.
There are a lot of what would have been C2 jobs disappearing and C1s, both being affected by automation and AI, and also the platform economy. In many other areas - I think of younger doctors, teachers, etc., the world, as defined by the NRS, is simply not the world they are living in. They are of often these days, although not the examples we would often see quoted, part of the gig economy.
The changes will happen. Turning back the tide is not an option but caring for the human within the job is surely what 'Labour' or whatever party evolves after the eruption of all the economies is all about. The gig economy works for barristers but not for those in warehouses. The new economies must be made to work for all - including those, should it happen, for whom there are no jobs. This shouldn't mean principles are dropped rather that they are used in a changing world.