From a strictly martial arts perspective this is pretty sad.
If you're only preparing by using strategy to beat your opponent by studying their tape and training only the parts of your game that you need to beat them, and you have to be trained mentally from just that one perspective of beating just one particular opponent on a certain day and you can't face anyone else, then I don't call that being a martial artist. That's someone scared to fight and scared to lose.
Besides, in what other sport does a competitor/champ turn down a replacement, especially versus someone/some team from a division below. That's like the USA Basketball dream team refusing to play Lithuania if Spain couldn't play.