The "pre-suasion" in the Queen's case was to build trust (through disarming honesty) before attempting to convince the troops to believe in her strength.
The basic idea is that you shouldn't just jump right into the message you're trying to deliver, but first prime your audience to hear it. There are many ways to do this, not just one.
You said that better than the OP. In fact the OP opened with an example that didn't explain it at all. They oversold the gimmick - 'like begets like!' Then they contradicted that.
For a person who's supposed to be convincing me about the right way to convince, they did an awful job.
The basic idea is that you shouldn't just jump right into the message you're trying to deliver, but first prime your audience to hear it. There are many ways to do this, not just one.