Unfortunately, Bikeability is run on behalf of Local Authorities either by teams embedded in the LA, or by private organisations working on behalf of the LA. As I'm sure you are aware, LAs are incredibly risk averse, so they tend to require helmets and high viz. An example of how risk averse they are - when the local school crossing patrol (lollipop) is being trained, or assessed, the assessor/trainer wears high viz, even though they never go into the road. You can't win against that sort of mentality.