I wouldn't call chess960 or any other variation a bastard, because in that case "traditional" chess would be a bastard too. If we want to be ortodox or traditionalist, we would still be playing Chaturanga or Shatranj. Millions of players in the East play Xiangqi and Shogi, games that share a common origin with our "traditional" chess.
Chess has changed over the centuries. And plenty of great players have tried variations of chess as a way to get better at it. Capablanca used to play with Lasker and others his own version of chess. Others have practiced "shuffle" chess as a way to get better in certain aspects of the game (chess960 is just a variation of it).
I have no intention to stop playing "traditional" chess, just suggest a way to get better at it. Chess960 may be a very good way to get better in tactics and positional chess.
Players sometimes get frustrated because their oponent can easily defeat them because he did his homework on openings by consulting a database or by memorizing them. According to my understanding, chess960 makes openings memorization irrelevant.
Anyways, maybe instead of implementing chess960 (with all its associated rules of castling) it would be easier to allow the players to setup the board so that they can set the configuration of the pieces themseves, just like shuffle chess.