It was stupid behaviour, he got off on a technicality, and idiots here rejoice.
There are places to legally ride as fast as you want and prove your skills. At those speeds, he would have killed someone if he hit a car.
A technicality would be a procedural error, like an improperly filed document or a missed deadline. Now explain how "he got off on a technicality"?
He got off because it couldn't be proven he was on the bike. That's what justice is, you get punished for crimes you committed, not for crimes you probably committed.
Luckily the court of law has a higher standard of proof than the court of public opinion, and a much higher standard than your brash opinion supported by ignorance.