You would also have to call about all of Chucks wins "lucky" too, it wasn't luck, there is a degree of chance in every punch/technique, but its not like Chuck slipped on a banana peel.
Chuck is predictable now. Evans did a great job of being a moving target, not sitting down and being a punching bag for Liddell's accurate but exceedingly low hands. The fact is that Ortiz had every chance to beat Liddell and lacked the mental fortitude necessary to beat him. Evans did.