The courts didn’t free Cosby because they found him not to be a rapist. They freed him because they found that the prosecutors lied to him in order to force him to testify against himself. In fact a civil trial found Cosby guilty of rape. That still stands.
I have no doubt Cosby did some of the things he did. The problem I have with this is that an accuser should not have a right to come forward years later — often times after the defendant outlived their usefulness to the victim — to make charges. Especially in the case of rape which is hard to prove years later.
If one feels violated, they should come forward immediately. Otherwise, you’ve lost your chance to pursue.
Civil trials don't find people guilty of anything. They find them liable or not liable based on a preponderance of evidence (>50%) standard. A person is convicted of a crime based on a beyond a reasonable doubt standard of evidence (nobody knows, but probably something > 95%). It's a much more difficult standard to achieve.