3) Upstream Ozzage has proposed that cycling facilities are good even if they actually make cycling more dangerous provided that they appear to make cycling safer to non-cyclists. At least I think that was what he said.
And explained why it will ultimately still make things safer in real terms as well.
Much later edit: I just realised you said to "non-cyclists" That's not true, or at least not wholly. It makes them seem safer to the majority of cyclists as well!