I'm hearing this for the first time – that a strong player, claiming to be the best, would be afraid of a generator.

Do you think the strongest player should always play in a way that gives a weaker player an advantage? Or make concessions? You gave up the generator, losing 1 day of tempo; you should have understood this and attacked on turn 112, surrendered, or played accordingly. Instead, you lost on turn 111, knowing you couldn't win after that, and started spamming units.
You claim to be the strongest, and you would have pulled off a losing situation. Why should Vitaly flip another coin in the form of another generation? You get an "uber chocolate" (a very good resource), and he just gets "chocolate" (a less good resource), and you win and write a report (that would be a real victory worthy of a champion...).
You are contradicting yourself.