If we are talking about what is available to pick now from the scheme, then it does offer many levels of equipment at a cost from different manufacturers, what we do not know is the innovations coming in the future.
There is much research and development being put into battery durability and reducing production costs, as new materials start to show promise these will benefit EV drivers by extending range and become lighter thus improving the overall experience of drivers.
If the amount of vehicles being produced in China become main stream cars in Europe it is logical the overall price of owning an EV will fall dramatically but it may be at the expense of quality and poor support infrastructure.
Tesla production number have reached all time levels but the design is ageing along with the technology, how will the second hand market support an influx of used EVs that are technically obsolete and at the moment difficult to recycle.
I suspect we just look to the moment and not fully aware of the outcomes in the future.