I see your point but ultimately most names get chosen by developers and unless they are offensive they are going to be allowed.
It is a pity that the opportunity to name check a bit of local history is going to be missed. I seem to recall that Wood Vale used to have a different name (something lane?) so the old name would have been a good choice.
Pissarro also painted a famous painting of Cox's bridge which has the Wood Vale hill in the background so that could have provided the inspiration of some art and history related names.
Isn't Wood Vale also the boundary between the People's Democratic Republic of Lewisham and the People's Democratic Republic of Southwark? Plenty of scope there if you want to poke fun at one party states and boroughs.
As a wider point local planning policy doesn't really seem to be very local. It is all national guidance and borough policy statements implemented by people who don't seem to have any connection with the local built environment.
I remember when I was working in Reading South Oxfordshire District Council had a reputation for having a very distinct local approach to planning aimed at protecting the character of the region. It doesn't seem to happen in Lewisham.