again, let me say that I'm only providing a possible explanation as to the timing. That is to say, what I am about to write is regarding how timing is an argument for both sides and as a result basically a non argument in general, because it could go either way and it can only be revealed along with the truth.
A lot of people are really hesitant to report SA as it's usually a lot of unwanted attention and it is quite embarassing. Most people don't want to draw attention to themselves as a victim. At the same time, it would definitely suck to see someone who violated you getting successful and praised even though they are... not a good person. People dwell on things that happen to them and it can take a long time for someone to finally decide to take action, because people are indecisive and scared. So it is very possible that the allegation came out at this time only because the bottled hurt and pain the alleged victim had felt finally burst with everyone praising the offendant.
Again, if the accusation is false the perpetrator should get full punishment. I am simply saying the timing argument works for both sides so we should treat it as a non-argument, since it is an argument that relies on the truth rather than an argument that reveals the truth