: The Watcher is;
: *2nd or 3rd most powerful sorceror in known history
My candidate for most often misquoted line from the series. The Watcher is the 2nd or 3rd most powerful sorcerer in LIVING MEMORY, which is different than known history. In other words, there's no one alive that remembers one or two more powerful sorcerers, not that there's never been one or two more powerful sorcerers.
I don't think this touches your point, though. It's just one of my Myth pet peeves.
Anyway, as to your point, I suppose it's possible. We know so little about him that it's hard to come up with something that would refute it.