My feelings are mixed. In the past DW has explained why certain fighters couldn't fight, saying they are injured or are taking some time off for specific reasons.
I also understand fighters are looking at this as a career. Eventually you have to turn down a couple fights because beating up new guys doesn't usually get you a championship fight.
But I do agree, DW tends to throw guys under the bus as some sort of vengeance when it should probably remain an a & b conversation.