Stowie, that is a completely exasperating post. The LCC has been pushing town centre redesign for 20 years, for which WalthamForestCrapBlogger gives them no credit whatsoever. There is a cycle/bus lane through the centre of Stratford, and you can thank the LCC for it. There is cycling and bus priority through Shoreditch and you can thank the LCC for that too. There's even cycling priority through the centre of the Vauxhall gyratory, and you can thank the LCC for that. There's also, best yet, the redesign of Brixton town cente in which there is no separation, but the traffic is cleverly managed in order to give pedestrians safer, more congenial space - again the LCC can take a bow for that, although they didn't get all they wanted. The LCC would remove the Tottenham gyratory in its entirety and make the high street two way, probably without any separation - just like Brixton.
You have to be careful, though. Crayford, Sutton and Croydon all have pedestrianised centres with ring roads around. Sutton and Croydon allows cycling under certain conditions, but Crayford doesn't - but the main point is that constructing inner ring roads and the associated car parks can act as a trip generator. The key to successful town centre redesign is 'traffic evaporation' and, while Brixton does embody the theory 'traffic evaporation' is not TfL policy.
There are real gains to be made, not just for cyclists, by restricting traffic flow. Lambeth and Merton (and other boroughs besides) have home zones which have restricted entry for cars, reducing through traffic through residential areas.
WFCB isn't interested in the achievements of the LCC - his angle is that London should be somehow re-made in the image of Groningen. That's bonkers. He's proposing precisely the course of action that my little drawing so neatly undermines. That's bonkers. And, as you say, he carps about the LCC in a way that is entirely disreputable.