Even if you agree with what he did, I don't think you can justify how it was done. I think it's fair to infect someone you dislike with malware if you're capable if that's the upfront intention. But the history of the particular piece of software in question was not malicious. It's like going to the doctor for your 6th booster shot, the first 5 were fine but this time he decides he doesn't like your accent and gives you the arsenic shot instead. Really his intention was clear with this, hiding malware behind a piece of legitimate software he was maintaining and had built a good reputation on. Ransomware is the new big thing so comparing it to that I feel that the motorcyclist's actions were actually worse. At least with actual malicious actors you know upfront what their intentions are. Putting aside the politics this is an overall negative for OSS.