I agree with the main point of your blog that the responsibility for safety must lie with those most likely to be the cause of danger, and that much of the recent activity around cycling and safety has failed to do that.
I would take issue with your comparison with sexual assault though. It's always going to be an highly sensitive issue for many, and the comparison you make runs the danger of inadvertantly perpetuating a dangerous myth. Rape is a deliberate, wilful act of violence against individuals. HGV incidents involving cycling casualties may be many things - careless, negligent, incautious, complacent - but they are rarely, if ever, deliberate acts intentionally perpetrated to harm individuals. To compare the two risks suggesting that sexual assault can also happen 'by mistake' - a commonly used defence made by those who carry out the violence.
I realise to imply as such was never your intention, but there may be more sensitive ways of making the point.