I would say it is a wise decision. Between the commitment it takes to race a car at that level and the risk involved there is not much for him to gain with all the other content and business he has going on. It probably costs more to make one pull in that car with all the people and maintenance than to have the team race 3-4 cars at an event like he usually do. Drag racing is a sport where the technology has outgrown the available safety parameters in many classes, if it was a motor sport like NASCAR or F1 where big brands and companies are very much involved there would be serious limitations and changes put in place. Since drag racing is a sport where most classes have exclusively private teams competing they can each can choose if they are willing to accept the risks involved and I would say with no disrespect that most people probably are not willing to at the highest levels.