I'll dive-on in again. This particular event is very much 'water under the bridge' in that there will/will not be enough evidence to prove/disprove.
The more important thing society needs to resolve is the culture where some still think that using sexual assault, or indeed alleging sexual assault, is in any way acceptable.
#metoo is empowering people so that they no longer whisper in the corner how Captain F'Knuckle has always liked a quick fumble in the galley at FL390; they are being given the confidence to shout out immediately, not 10 years downstream. By doing so you start to change the culture, in a small way, such that F'Nuckle may just think twice before embarking on their sworded quest.