But sex crimes do have a stigma in society and there is for many a reason, though mostly though historical injustices and injustices that still transpire today have produced. This the tendency to lean towards guilty until proven innocent, over innocent until proven guilty, can and do play out socially and in a majority of people's mindsets.
Equally there have in the UK, there have been cases of false rape claims, for various reasons and access to all information pertinent in establishing a crime is what the law and justice demand.
Whilst many may feel such actions as a blanket are bad taste, there have been instances in which justice would of been perverted had it not been forthcoming and justice for all is what is needed.
Will this or any of the examples you outline hinder justice - nope. But if those examples are hindered, then justice suffers.
Also worth noting that with this law, it will in instances help support the case and expedite it, think about domestic abuse here. So whilst it may leave a bad taste and for some victims, feel like an intrusion into their life, it is an intrusion that is in there best interest to help bring about swifter justice. If anything it just formalises full-disclosure and supeaner avenues and bureaucracy in courts - hence speeds up justice. Which is in everybody's interest.