I don't see it, but as far as personal perceptions go I know what you mean. This is an extract from Martin Smith's statement describing his perception of the person -
"The description of the individual that I saw on 3rd May 2007 carrying a child is as follows. He was average build, 5 foot 10' in height, brown hair cut short (later describes it as a 'tight cut'), aged 40 years approximately."
That doesn't describe the images we've seen of CB around that time and what we know about him. His build is slim, not average. He is 6 foot. He has blonde hair. His hair was longish and wavy at the time (or if you want to use GA's description it was extremely long). He was 30 years old at the time, though I would say if anything he looked younger than that.