There is nothing necessarily wrong with separate areas of scope, but unfortunately in this context the concept of "limited scope" has come to mean plumbers trained to remember the difference between blue, brown,and g/y 2 times out of 3.It seems the current model is divide everything into separate little fields and create a course, qualification and a CPS for it, why does it need to be divided up into separate sections if you are qualified and experienced as an electrician then you are an electrician if you chose to follow some defined limited scope training then you are not an electrician. We don't have a BS7671 part XX for each individual area of electrical work so why define separate areas of work
You don't expect your GP to be able to carry out brain surgery.
You don't worry if the guy driving the bus you're in isn't qualified to drive 30 tonne lorries.
Maybe it is worth thinking about whether it might be easier to raise standards if they were more granular, if there was something between "can point to a photo of a screwdriver and identify the handle" and "can do absolutely everything".
By its very nature, experience becomes "defined and limited", so would it in principle be a bad thing if training and qualifications did likewise? It certainly isn't when it comes to experience - for example, who would most people rather have to rewire their house, someone with 20 years experience of doing that without destroying the decor, or someone with 40 years experience of nothing but factories, workshops, oil rigs, and power stations?
I would say neither of them are while they are playing to the balance sheet to the detriment of the skills within the trade and the public wanting to employ a "skilled electrician", the waiting game now is who will reign supreme and take over the other IMO
The NICEIC, NAPIT and the other CPS's have had their day and are failing the industry we really need something similar to the Gassafe model where the HSE oversees the register of of individual skilled persons not like the current NICEIC / NAPIT system where companies are assessed as competent. The closest we possibly have at the moment for individuals is the JIB grading system and ECS card