Health,
“The reason I’m thinking that – because no one was killed or injured.”
No, the reason you’re thinking that is because you believe that anyone who happens to have a different political viewpoint than you do must be evil incarnate. Overwhelmingly, a person who mails a bomb to someone else does not like that person. As for why no one was killed or injured, there are numerous reasons that are far more plausible than a false-flag conspiracy, including:
1. Many of the recipients are high profile figures, and thus their mail is screened carefully
2. Once Soros received the suspicious package, everyone else became much more careful with their mail
3. If the bomber made the packages too easy to detonate, they likely would kill postal workers in the sorting room rather than the intended target, so s/he made them harder to detonate, which increased the chances of their getting discovered before detonation