Dallas's previous records mean nothing. Road warriors is just coincidence of efforts and urgency that happened during games that all happen to be on the road. Maybe Dallas does worse at home because there's a sense that they will be given some advantage by playing at home and in so thinking, there is less effort and urgency. Such is the behavior of Dallas over the years.
I was watching the movie "Searching for Bobby Fischer" and Lawrence Fishbourne's character started warning the chess player who was training "Don't play the board, play me." Jason in one of his recent interviews said that they need to keep doing what they are doing and play better. It's like it doesn't matter who the opponent is or what the opponent does, Jason will keep trying the limited selection of plays despite any lack of success.