... other than CPC redundancy (and often less VD), although I accept that there are good few 'cons' to balance that 'pro'.Installing a ring final circuit in 2022 achieves absolutely nothing.
If you're considering the alternative to be a 4mm² 32A radial, then I'm inclined to agree with you but, as I've often said, I'm personally not all that comfortable with the concept of a 20A multi-socket sockets circuit.
I've always thought that it's a bit of a pity that we don't have 3.0mm² T+E available!
Kind Regards, John